24 (twenty-four) is the natural number following 23 and preceding 25. In English, it is the smallest integer with ten letters in its spelled out name. 20 (twenty) is the natural number following 19 and preceding 21. ... This article discusses the number Four. ... In mathematics, a natural number can mean either an element of the set {1, 2, 3, ...} (i. ... This article is about the number 23. ... 25 (twenty-five) is the natural number following 24 and preceding 26. ...

The SI prefix for 10²⁴ is yotta (Y), and for 10^-24 (i.e., the reciprocal of 10²⁴) yocto (y). These numbers are the largest and smallest number to receive an SI prefix to date. An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple (supramultiple or submultiple). ... Yotta (symbol Y) is a SI prefix in the SI (system of units) denoting 1024 or 1 000 000 000 000 000 000 000 000. ... Yocto (symbol y) is a SI prefix in the SI system of units denoting a factor of 10-24. ...

← 20 21 22 23 24 25 26 27 28 29 → 19 (nineteen) is the natural number following 18 and preceding 20. ... 20 (twenty) is the natural number following 19 and preceding 21. ... 21 (twenty-one) is the natural number following 20 and preceding 22. ... 22 (twenty-two) is the natural number following 21 and preceding 23. ... This article is about the number 23. ... 25 (twenty-five) is the natural number following 24 and preceding 26. ... 26 (twenty-six) is the natural number following 25 and preceding 27. ... 27 (twenty-seven) is the natural number following 26 and preceding 28. ... 28 (twenty-eight) is the natural number following 27 and preceding 29. ... 29 (twenty-nine) is the natural number following 28 and preceding 30. ... 30 (thirty) is the natural number following 29 and preceding 31. ... List of numbers — Integers This is a list of articles about numbers (not about numerals). ... The integers are commonly denoted by the above symbol. ... 0 10 20 30 40 50 60 70 80 90 → 0 (zero) is both a number and a numerical digit used to represent that number in numerals. ... 10 (ten) is an even natural number following 9 and preceding 11. ... 20 (twenty) is the natural number following 19 and preceding 21. ... 30 (thirty) is the natural number following 29 and preceding 31. ... 40 (forty) is the natural number following 39 and preceding 41. ... 50 (fifty) is the number following 49 and preceding 51. ... 60 (sixty) is the natural number following 59 and preceding 61. ... Look up seventy in Wiktionary, the free dictionary. ... 80 (eighty) is the natural number following 79 and preceding 81. ... 90 (ninety) is the natural number preceded by 89 and followed by 91. ... 100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101. ...
Cardinal	24 twenty-four
Ordinal	24th twenty-fourth
Factorization
Divisors	1, 2, 3, 4, 6, 8, 12, 24
Roman numeral	XXIV
Binary	11000
Hexadecimal	18

Aleph-0, the smallest infinite cardinal In mathematics, cardinal numbers, or cardinals for short, are a generalized kind of number used to denote the size of a set. ... Commonly, ordinal numbers, or ordinals for short, are numbers used to denote the position in an ordered sequence: first, second, third, fourth, etc. ... In mathematics, factorization or factoring is the decomposition of an object (for example, a number, a polynomial, or a matrix) into a product of other objects, or factors, which when multiplied together give the original. ... In mathematics, a divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder. ... The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. ... The binary numeral system, or base-2 number system, is a numeral system that represents numeric values using two symbols, usually 0 and 1. ... In mathematics and computer science, hexadecimal, base-16, or simply hex, is a numeral system with a radix, or base, of 16, usually written using the symbols 0–9 and A–F, or a–f. ...

In mathematics

It is the factorial of 4 and a composite number, the smallest number with exactly eight divisors, its proper divisors being 1, 2, 3, 4, 6, 8, and 12, making it a highly composite number. Subtracting one from each of its divisors (except 1 and 2, but including itself) yields a prime number; 24 is the largest number with this property. Adding up all the proper divisors of 24 except 4 and 8 gives 24, hence 24 is a semiperfect number. The beginning of the sequence of factorials (sequence A000142 in OEIS) In mathematics, the factorial of a number n is the product of all positive integers less than or equal to n. ... A composite number is a positive integer which has a positive divisor other than one or itself. ... In mathematics, a divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder. ... Look up one in Wiktionary, the free dictionary. ... “II” redirects here. ... This article discusses the number three. ... This article discusses the number Four. ... Number 6, in this article, refers to the mathematical number. ... Look up eight in Wiktionary, the free dictionary. ... Look up twelve in Wiktionary, the free dictionary. ... A highly composite number is a positive integer which has more divisors than any positive integer below it. ... In mathematics, a prime number (or a prime) is a natural number that has exactly two (distinct) natural number divisors, which are 1 and the prime number itself. ... In mathematics, a semiperfect number or pseudoperfect number is a natural number n that is equal to the sum of all or some of its proper divisors. ...

There are 10 solutions to the equation φ(x) = 24, namely 35, 39, 45, 52, 56, 70, 72, 78, 84 and 90. This is more than any integer below 24, making 24 a highly totient number. The first thousand values of φ(n) In number theory, the totient (n) of a positive integer n is defined to be the number of positive integers less than or equal to n and coprime to n. ... A highly totient number k is an integer that has more solutions to the equation φ(x) = k, where φ is Eulers totient function, than any integer below it. ...

24 is a nonagonal number. This number is also the sum of a twin prime (11 + 13). It is a Harshad number and a semi-meandric number. A nonagonal number or enneagonal number is a figurate number that represents a nonagon. ... A twin prime is a prime number that differs from another prime number by two. ... A Harshad number, or Niven number, is an integer that is divisible by the sum of its digits in a given number base. ... In mathematics, a meander or closed meander is a self-avoiding closed curve which intersects a line a number of times. ...

24 is one of the few numbers for which the sum of μ(d)d² for each of its divisors is equal to itself. (This it has in common with 1).

In 24 dimensions there are 24 even positive definite unimodular lattices, called the Niemeier lattices. One of these is the exceptional Leech lattice which has many surprising properties; due to its existence, the answers to many problems such as the kissing number problem and sphere packing are known in 24 dimensions but not in many lower dimensions. The Leech lattice is closely related to the equally nice length-24 binary Golay code and the Steiner system S(5,8,24) and the Mathieu group M₂₄. One construction of the Leech lattice is possible because of the remarkable fact that 1²+2²+3²+...+24² =70²is a perfect square; 24 is the only integer greater than 1 with this property. These properties of 24 are related to the fact that the number 24 also appears in several places in the theory of modular forms; for example, the modular discriminant is the 24th power of the Dedekind eta function. In mathematics, a unimodular lattice is a lattice of discriminant 1 or −1. ... In mathematics, a Niemeier lattice is one of the 24 positive definite even unimodular lattices of rank 24, which were classified by Niemeier. ... In mathematics, the Leech lattice is a lattice Λ in R24 discovered John Leech ( 16 (1964), 657--682). ... In geometry, the kissing number problem is to find the maximum number of spheres of radius 1 that can simultaneously touch the unit sphere in n-dimensional Euclidean space (or, with the restriction for their centres to be in a particular lattice). ... In mathematics, sphere packing problems are problems concerning arrangements of non-overlapping identical spheres which fill a space. ... The extended binary Golay code is an error-correcting code which encodes 12 bits of data in a 24-bit word in such a way that any triple-bit error can be corrected and any quadruple-bit error can be detected. ... In mathematics, a Steiner system is a type of block design. ... In mathematics, the Mathieu groups are five finite simple groups discovered by the French mathematician Emile Léonard Mathieu. ... In mathematics, the Leech lattice is a lattice Λ in R24 discovered John Leech ( 16 (1964), 657--682). ... The term perfect square is used in mathematics in two meanings: an integer which is the square of some other integer, i. ... Modular form - Wikipedia /**/ @import /skins-1. ... In number theory, a cusp form is a particular kind of modular form, distinguished in the case of modular forms for the modular group by the vanishing in the Fourier series expansion of the constant coefficient a0. ... The Dedekind eta function is a function defined on the upper half plane of complex numbers whose imaginary part is positive. ...

24 is the largest number n with the property that every element of the group (Z/nZ)^* has order 1 or 2; this strange fact plays a role in monstrous moonshine. In mathematics, monstrous moonshine is a term devised by John Horton Conway and Simon P. Norton in 1979, used to describe the (then totally unexpected) connection between the monster group M and modular functions (particularly, the j function). ...

The 24-cell, with 24 octahedral cells and 24 vertices, is a self-dual convex regular 4-polytope; it has no good 3-dimensional analogue. In geometry, the 24-cell (or icositetrachoron) is the convex regular 4-polytope with Schläfli symbol {3,4,3}. The 24-cell is the unique convex regular 4-polytope without a good 3-dimensional analog. ... In geometry, polyhedra are associated into pairs called duals, where the vertices of one correspond to the faces of the other. ... In mathematics, a convex regular 4-polytope (or polychoron) is 4-dimensional polytope which is both a regular and convex. ...

In science

• The atomic number of chromium

It has been suggested that List of elements by atomic number be merged into this article or section. ... General Name, Symbol, Number chromium, Cr, 24 Chemical series transition metals Group, Period, Block 6, 4, d Appearance silvery metallic Atomic mass 51. ...

Astronomy

• The Messier object M24, a magnitude 11.5 star cloud in the constellation Sagittarius, known among other names as Delle Caustiche and the Sagittarius Star Cloud
• The New General Catalogue object NGC 24, a magnitude 11.6 spiral galaxy in the constellation Sculptor
• The Saros number of the solar eclipse series which began on -2134 April 6 and ended on -854 May 14. The duration of Saros series 24 was 1280.1 years, and it contained 72 solar eclipses. Further, the Saros number of the lunar eclipse series which began on -2049 September 6 and ended on -516 March 14. The duration of Saros series 24 was 1532.5 years, and it contained 86 lunar eclipses.
• The 24th moon of Jupiter is Pasiphae

The Messier objects are a set of astronomical objects catalogued by Charles Messier in his catalogue of Nebulae and Star Clusters first published in 1774. ... The M24 is also a sniper rifle. ... The apparent magnitude (m) of a star, planet or other heavenly body is a measure of its apparent brightness; that is, the amount of light received from the object. ... A star cloud is a group of stars that appear to be in the same position in the sky. ... This article or section does not cite its references or sources. ... For other uses, see Sagittarius. ... The M24 is also a sniper rifle. ... The M24 is also a sniper rifle. ... The New General Catalogue (NGC) is the most well-known catalogue of deep sky objects in amateur astronomy. ... A spiral galaxy is a type of galaxy in the Hubble sequence which is characterized by the following physical properties: Spiral Galaxy M74 presents a face-on view of its spiral arms. ... This article or section does not cite its references or sources. ... Categories: Astronomy stubs | Modern constellations | Constellations | Sculptor constellation ... A Saros cycle is a period of 6585 + 1/3 days (approximately 18 years 10 days and 8 hours) which can be used to predict eclipses of the Sun and the Moon. ... Photo taken during the 1999 eclipse. ... April 6 is the 96th day of the year in the Gregorian calendar (97th in leap years). ... May 14 is the 134th day of the year in the Gregorian calendar (135th in leap years). ... A lunar eclipse occurs whenever the Moon passes through some portion of the Earths shadow. ... September 6 is the 249th day of the year (250th in leap years). ... For the Lebanese political coalition, see March 14 Alliance. ... Atmospheric characteristics Atmospheric pressure 70 kPa Hydrogen ~86% Helium ~14% Methane 0. ... Pasiphaë (pa SIF a ee) is a moon of Jupiter. ...

In religion

• The number of books in the Tanakh

Tanakh (Hebrew: ‎) (also Tanach, IPA: or , or Tenak, is an acronym that identifies the Hebrew Bible. ...

In music

There are 24 major and minor keys in Western tonal music, not counting enharmonic equivalents. Therefore, for collections of pieces written in each key, the number of pieces in such a collection; e.g., Chopin's 24 Preludes Tonality is the character of music written with hierarchical relationships of pitches, rhythms, and chords to a center or tonic. ... In music, an enharmonic is a note which is the equivalent of some other note, but spelled differently. ... The only known photograph of Frédéric Chopin (commonly mistaken for a daguerreotype), believed to have been taken by Louis-Auguste Bisson in 1849 “Chopin” redirects here. ... The Preludes Op. ...

In sports

• The retired number of Willie Mays, former baseball star
• The car number of 4-time NASCAR Nextel Cup Series champion Jeff Gordon since the 1992 Hooters 500. Previously, another Gordon-- Cecil Gordon--had driven the 24 car.
• The jersey number of MLB All-Star, Robinson Cano for the 2007 season.
• The jersey number of NBA mega star, Kobe Bryant (from the 2006-07 season, onwards)
• The jersey number of NFL Stars, Champ Bailey and Cadillac Williams

Willie Howard Mays Jr. ... The National Association for Stock Car Auto Racing (NASCAR) is the largest sanctioning body of motorsports in the United States. ... The National Association for Stock Car Auto Racing (NASCAR) is the largest sanctioning body of motorsports in the United States. ... Jeffery Michael Gordon (born August 4, 1971) is an American race car driver. ... Cecil Gordon (born June 21, 1941 in Horse Shoe, North Carolina) was a NASCAR driver. ... All-star (also, Allstar or All Star) is a term with meanings in both the worlds of sports and entertainment. ... Robinson José Cano (born October 22, 1982 in San Pedro de Macoris, Dominican Republic) is a second baseman in Major League Baseball, who currently plays for the New York Yankees. ... Kobe Bryant (born August 23, 1978) is an American All-Star shooting guard in the National Basketball Association who plays for the Los Angeles Lakers. ... Roland Champ Bailey (born June 22, 1978 in Folkston, Georgia) is an American football player, starting at cornerback for the Denver Broncos of the National Football League. ... Carnell Cadillac Williams (born April 21, 1982 in Attalla, Alabama) is an American football running back for the Tampa Bay Buccaneers of the NFL. // Williams started all four years while playing for Etowah High School (Etowah County, Alabama), rushing for 1,729 yards with 23 touchdowns as a junior and...

In other fields

Astronomical clock in Prague

24 is also: Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Download high resolution version (2272x1704, 1975 KB)Astronomical Clock File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Download high resolution version (2272x1704, 1975 KB)Astronomical Clock File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...

• The number of hours in a day.
• The number of frames per second at which motion picture film is usually projected.
• The number of cycles in the Chinese solar year.
• The number of Carats representing 100% pure gold.
• The number of bits a computer needs to represent truecolour images (for a maximum of 16,777,216 colours).
• The number of letters in both the modern and classical Greek alphabet. For the latter reason, also the number of chapters or "books" into which Homer's Odyssey and Iliad came to be divided.
• 24, television series starring Kiefer Sutherland. Each 24-episode season of the show covers 24 hours.
• The number of points on a backgammon board.
• When pronounced "two-four", a 24-pack of beer (Canadianism).
• A children's mathematical game involving the use of any of the 4 standard operations on 4 numbers on a card to get 24 (see Math 24)
• "24", a song by Welsh musician Jem
• The nursery rhyme Sing a Song of Sixpence has the line "four and twenty blackbirds, baked in a pie"
• The maximum number of Knight Companions in the Order of the Garter
• The Twenty-fourth Amendment to the United States Constitution is one of the Civil Rights-era amendments, abolishing poll tax requirements in federal elections.
• The designation of US Interstate 24, a freeway that runs from Tennessee to Illinois. Also many other roads called Route 24
• 24 is considered an unlucky number in Cantonese culture because its pronounication is similar to that of "easy to die". For this reason, many buildings skip this floor number. The same goes for 14, 34, 44, etc.
• In Brazil, the number 24 holds a strong popular association with homosexuality, as there is a popular betting game, the Jogo do Bicho (Animal Game) in which 24 is the "deer" number. The Brazilian word for deer, "veado", is also used as a depreciative slang term for homosexual, although the latter is sometimes spelled with an 'i' as opposed to an 'e'
• #24 is a recurring character on The Venture Bros.

The hour (symbol: h) is a unit of time. ... Water, Rabbit, and Deer: three of the 20 day symbols in the Aztec calendar, from the Aztec Sun Stone. ... Film is a term that encompasses individual motion pictures, the field of film as an art form, and the motion picture industry. ... The Chinese calendar is a lunisolar calendar, akin to the Hebrew calendar & Hindu Calendar, incorporating elements of a lunar calendar with those of a solar calendar. ... Meanings of carat or karat: In the gem business: Carat (mass) is a unit of mass for gems. ... General Name, Symbol, Number gold, Au, 79 Chemical series transition metals Group, Period, Block 11, 6, d Appearance metallic yellow Atomic mass 196. ... This article is about the unit of information. ... Truecolour (or Truecolor, Millions on a Macintosh) graphics is a method of storing image information in a computers memory such that each pixel is represented by three or more bytes. ... The Greek alphabet is an alphabet that has been used to write the Greek language since about the 9th century BCE. It was the first alphabet in the narrow sense, that is, a writing system using a separate symbol for each vowel and consonant alike. ... Homer (Greek: , HómÄ“ros) was a legendary early Greek poet and aoidos (rhapsode) traditionally credited with the composition of the Iliad and the Odyssey. ... Odysseus and Nausicaä - by Charles Gleyre The Odyssey (Greek: , Odusseia) is one of the two major ancient Greek epic poems attributed to the poet Homer. ... It has been suggested that Deception of Zeus be merged into this article or section. ... 24 is an Emmy and Golden Globe award-winning American television series created by Joel Surnow and Robert Cochran, and produced by Imagine Television. ... Kiefer William Frederick Dempsey George Rufus Sutherland (born December 21, 1966 in London, England) is an Emmy and Golden Globe Award-winning Canadian television and film actor, best known for his role of Jack Bauer on the series 24. ... Backgammon is a board game for two players in which pieces are moved according to the roll of dice and the winner is the first to remove all his pieces from the board. ... A selection of bottled beers A selection of cask beers Beer is the worlds oldest[1] and most popular[2] alcoholic beverage, selling more than 133 billion litres (35 billion gallons) per year - producing total global revenues of $331. ... Math 24 is a mathematics-related card game in which a card with four digits (or values) is shown to the players, and they must use mathematical operations and all four digits to create a final total of 24. ... Jemma Griffiths (born June 18, 1975 in Penarth, nr. ... See also Sing a Song of Sixpence, a Sesame Beginnings book. ... The insignia of a knight of the Order of the Garter. ... Amendment XXIV in the National Archives Amendment XXIV (the Twenty-fourth Amendment) of the United States Constitution prohibits both Congress and the states from conditioning the right to vote in federal elections on payment of a poll tax or other types of tax. ... Martin Luther King is perhaps most famous for his I Have a Dream speech, given in front of the Lincoln Memorial during the 1963 March on Washington for Jobs and Freedom This article is about the civil rights movement following the Brown v. ... Motto: (Out Of Many, One) (traditional) In God We Trust (1956 to date) Anthem: The Star-Spangled Banner Capital Washington D.C. Largest city New York City None at federal level (English de facto) Government Federal constitutional republic  - President George Walker Bush (R)  - Vice President Dick Cheney (R) Independence from... Interstate 24 (abbreviated I-24) is an interstate highway in the eastern United States. ... Official language(s) English Capital Nashville Largest city Memphis Largest metro area Nashville Area  Ranked 36th  - Total 42,169 sq mi (109,247 km²)  - Width 120 miles (195 km)  - Length 440 miles (710 km)  - % water 2. ... Official language(s) English Capital Springfield Largest city Chicago Area  Ranked 25th  - Total 57,918 sq mi (149,998 km²)  - Width 210 miles (340 km)  - Length 390 miles (629 km)  - % water 4. ... Route 24, or Highway 24, can refer to: U.S. Route 24 State Route 24 (California) Route 24 (Massachusetts) Michigan State Highway 24 Missouri State Highway 24 (decommissioned) Route 24 (New Jersey) North Carolina State Highway 24 State Highway 24 (Oklahoma) Route 24 (Rhode Island) State Highway 24 (Texas) State... Homosexuality refers to sexual interaction and / or romantic attraction between individuals of the same sex. ... The henchmen of the Monarch, in particular the recurring characters #21 and #24, are supporting characters of the Adult Swim program The Venture Bros. ... The Venture Bros. ...

Historical years

24 A.D., 24 B.C., 1924, 2024, etc. Roman war against Numidia and Mauretania ends. ... Centuries: 2nd century BC - 1st century BC - 1st century Decades: 70s BC 60s BC 50s BC 40s BC 30s BC - 20s BC - 10s BC 0s 10s 20s 30s Years: 29 BC 28 BC 27 BC 26 BC 25 BC 24 BC 23 BC 22 BC 21 BC 20 BC 19... 1924 (MCMXXIV) was a leap year starting on Tuesday (link will display the full calendar). ... 2024 (MMXXIV) will be a leap year starting on Monday of the Gregorian calendar. ...