This page is for the number. For the steamboat see Forty-Nine (steamboat)

49 (forty-nine) is the natural number following 48 and preceding 50. Aleph-0, the smallest infinite cardinal In mathematics, cardinal numbers, or cardinals for short, are generalized numbers used to measure the cardinality (size) of sets. ... In linguistics, ordinal numbers are the words representing the rank of a number with respect to some order, in particular order or position (i. ... ... 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. ... The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. ... The duodecimal (also known as base-12 or dozenal) system is a numeral system using twelve as its base. ... 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, a natural number can mean either an element of the set {1, 2, 3, ...} (i. ... 48 (forty-eight) is the natural number following 47 and preceding 49. ... 50 (fifty) is the number following 49 and preceding 51. ...

In mathematics

Forty-nine is the square of 7, it is a centered octagonal number. In mathematics, a square number, sometimes also called a perfect square, is an integer that can be written as the square of some other integer; in other words, it is the product of some integer with itself. ... Look up four in Wiktionary, the free dictionary. ... A centered octagonal number is a centered figurate number that represents an octagon with a dot in the center and all other dots surrounding the center dot in successive octagonal layers. ...

49 is one of the two number with an aliquot sum of 8; the other being 10. Its aliquot sequence is (49, 8, 7, 1, 0). Divisor function σ0(n) up to n=250 Sigma function σ1(n) up to n=250 Sum of the squares of divisors, σ2(n), up to n=250 Sum of cubes of divisors, σ3(n) up to n=250 In mathematics, and specifically in number theory, a divisor function is... Look up eight in Wiktionary, the free dictionary. ... This article is about the number 10. ... In mathematics, an aliquot sequence is a recursive sequence which can be defined in the following way: if we write σ(n) = σ1(n) to be the divisor function normally, then, the aliquot sequence of k can be written: s0 = k sn = σ(sn−1) − sn−1 For example, the aliquot sequence...

It appears in the Padovan sequence, preceded by the terms 21, 28, 37 (it is the sum of the first two of these). The Padovan sequence is the sequence of integers P(n) defined by the initial values and the recurrence relation The first few values of P(n) are 1, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 21, 28, 37, 49, 65, 86, 144, 151, 200. ...

Since the greatest prime factor of 49² + 1 = 2402 is 1201, which is clearly more than 49 twice, 49 is a Størmer number.

In chemistry

• The atomic number of indium.

• During the Manhattan Project, plutonium was also often referred, simply, to as "49". Number 4 was for the last digit in 94 (atomic number of plutonium) and 9 for the last digit in Pu-239, the weapon-grade fissile isotope used in nuclear bombs.^[1][2]

See also: List of elements by atomic number In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. ... General Name, Symbol, Number indium, In, 49 Chemical series poor metals Group, Period, Block 13, 5, p Appearance silvery lustrous gray Standard atomic weight 114. ... This article is about the World War II nuclear project. ... This article is about the radioactive element. ...

In astronomy

• Messier object M49, a magnitude 10.0 galaxy in the constellation Virgo.

• The New General Catalogue object NGC 49, a spiral galaxy in the constellation Cetus.

• The Saros number of the solar eclipse series which began on -1248 February 22 and ended on 32 March 29. The duration of Saros series 49 was 1280.1 years, and it contained 72 solar eclipses.

• The Saros number of the lunar eclipse series which began on -1217 June 21 and ended on 81 August 8. The duration of Saros series 49 was 1298.1 years, and it contained 73 lunar eclipses.

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. ... Elliptical Galaxy M49 (also known as Messier Object 49, Messier 49, M49, or NGC 4472) is an elliptical galaxy in the Virgo constellation. ... 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. ... For other uses, see Galaxy (disambiguation). ... This article is about the star grouping. ... Virgo (pronounced , Latin: , symbol , ) is a constellation of the zodiac. ... The New General Catalogue (NGC) is the best-known catalogue of deep sky objects in amateur astronomy. ... An example of a spiral galaxy, the Pinwheel Galaxy (also known as Messier 101 or NGC 5457) A spiral galaxy is a galaxy belonging to one of the three main classes of galaxy originally described by Edwin Hubble in his 1936 work “The Realm of the Nebulae”[1] and, as... Cetus (pronounced , latinized form of Ancient Greek κῆτος - kētos, “whale, any sea-monster or huge fish”) is a constellation of the northern winter sky, in the region known as the Water, near other watery constellations like Aquarius, Pisces, and Eridanus. ... 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. ... is the 53rd day of the year in the Gregorian calendar. ... For alternate uses, see Number 32. ... is the 88th day of the year (89th in leap years) in the Gregorian calendar. ... Time lapse movie of the 3 March 2007 lunar eclipse A lunar eclipse occurs whenever the Moon passes through some portion of the Earth’s shadow. ... is the 172nd day of the year (173rd in leap years) in the Gregorian calendar. ... Centuries: 1st century BC - 1st century - 2nd century Decades: 0s BC - 0s - 10s - 20s - 30s - 40s - 50s - 60s - 70s - 80s - 90s - 100s Years: 76 77 78 79 80 81 82 83 84 85 86 Events Domitian succeeds his brother Titus Flavius as emperor of the Roman Empire. ... is the 220th day of the year (221st in leap years) in the Gregorian calendar. ...

In religion

• On the Hebrew calendar, the number of days of the Counting of the Omer
• The number of days and night Siddhartha Gautama spent meditating as a holy man

The Hebrew calendar (‎) or Jewish calendar is a lunisolar calendar used by Jews for predominantly religious purposes. ... Counting of the Omer (or Sefirat Haomer, Hebrew: ספירת העומר) within Judaism, is a verbal counting with a blessing during the 49 days between Pesach (Passover) and Shavuot (Pentecost) which are counted ceremoniously as a commemoration of the Omer ceremony which was celebrated in the Temple in Jerusalem. ... Siddhartha and Gautama redirect here. ...

In sports

• '49er, the moniker of one who participated in the 1849 California Gold Rush, as well as the NFL's San Francisco 49ers.
• The Number of the All-Time Hall of Fame Quarterback Alexander Wenzel
• Astros Larry Dierker's retired uniform #49.
• New York Yankees Ron Guidry’s retired uniform #49.
• Arsenal had a 49 unbeaten run between May 2003 to October 2004 which is a national record in English football.

Year 1849 (MDCCCXLIX) was a common year starting on Monday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Saturday of the 12-day slower Julian calendar). ... The California Gold Rush (1848–1855) began shortly after January 24, 1848 (when gold was discovered at Sutters Mill in Coloma). ... Here are things that start with the name Astros: Major League Baseball Houston Astros Astros Field A place in Arcadia, Greece Astros, Greece See also: Astro This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Lawrence Edward Dierker (born September 22, 1946 in Hollywood, California) is a former pitcher and manager in Major League Baseball who had a 14-year playing career from 1964 to 1977 and a 5-year career leading the Houston Astros from 1997 to 2001. ... For the Major League Baseball team, see New York Yankees. ... Pitcher Ron Guidry Ronald Ames Guidry (Louisiana Lightning and Gator) (born August 28, 1950 in Lafayette, Louisiana) is a former Major League Baseball left-handed pitcher. ... Arsenal Football Club (also known as Arsenal, The Arsenal or The Gunners) are an English professional football club based in Holloway, north London. ... The Invincibles in football (soccer) has recently been adopted to describe the Arsenal F.C. team of the 2003-2004 Premiership season for the feat of winning the league without suffering a single defeat. ... 2003 : January - February - March - April - May - June - July - August - September - October - November - December - → A timeline of events in the news for May, 2003. ... October 2004 : January - February - March - April - May - June - July - August - September - October - November - December See also: October 2004 in sports Events Deaths in October • 29 HRH Princess Alice • 25 John Peel • 24 James Cardinal Hickey • 23 Robert Merrill • 19 Paul Nitze • 18 K. M. Veerappan • 16 Pierre Salinger • 10 Christopher... This page details football records in England. ...

In music

• Funk #49, the title of a hit song by the James Gang
• Featured in the song title "49 Bye-Byes" in Crosby Stills and Nash's self-titled album
• Song: 'Days of 49” by Bob Dylan

To meet Wikipedias quality standards, this article or section may require cleanup. ... Crosby, Stills & Nash, also Crosby, Stills, Nash & Young when including occasional fourth member Neil Young, are a folk rock/rock supergroup. ... This article is about the recording artist. ...

In other fields

Forty-nine is:

• The number of strings on a harp and the number of keys on a celesta
• HP-49 series is a Hewlett Packard calculator
• I-49 is the designation for a US interstate highway in Louisiana
• The code for international direct dial phone calls to Germany
• In the title of Thomas Pynchon's novel The Crying of Lot 49
• In the title of the movie Ladder 49
• In the title of the movie 49 Up
• A 49 is a term used to describe a party after a powwow, usually held by the powwow participants. it also refers to a particular type of song that is sung on such occasions.
• 49th State: Alaska
• 49th parallel between Canada and the USA
• At age 49, former PTL minister, Jim Bakker, sent to prison on fraud/tax evasion charges (1989)
• Ernest Hemingway collection: The Fifth Column and The First Forty-Nine Stories
• Japanese GS1 country code

For other uses, see Harp (disambiguation). ... French type, four-octave Celesta The Celesta (IPA ) is a struck idiophone operated by a keyboard. ... HP 49G graphing calculator The HP 49G series are Hewlett-Packard (HP) manufactured graphing calculators. ... HP redirects here. ... For other uses, see Calculator (disambiguation). ... Interstate 49 is an intrastate interstate highway located entirely within the state of Louisiana, United States. ... For other uses of terms redirecting here, see US (disambiguation), USA (disambiguation), and United States (disambiguation) Motto In God We Trust(since 1956) (From Many, One; Latin, traditional) Anthem The Star-Spangled Banner Capital Washington, D.C. Largest city New York City National language English (de facto)1 Demonym American... Interstate Highways in the lower 48 states. ... This article is about the U.S. State. ... This is a list of country calling codes, also known as international direct dialing (IDD) codes, which are needed to access international telephone services. ... Thomas Ruggles Pynchon, Jr. ... The Crying of Lot 49 (1966) is a novel by the author Thomas Pynchon. ... Ladder 49 is a 2004 drama movie about firefighters. ... The Up series consists of seven documentary films that have followed the lives of fourteen British children since 1964, when they were seven years old. ... For other uses, see Alaska (disambiguation). ... The 49th parallel of north latitude forms part of the International Boundary between Canada and the United States from Manitoba to British Columbia on the Canadian side and from Minnesota to Washington on the U.S. side. ... Jim Bakker (born January 2, 1939 in Muskegon, Michigan) is an American televangelist, Assemblies of God preacher, and evangelist beset by scandal, and the former host of The PTL Club (PTL being an acronym for Praise the Lord and People That Love) with his then-wife Tammy Faye Bakker. ... James Orsen Bakker (born January 2, 1939, in Muskegon, Michigan) is an American televangelist, a former Assemblies of God minister, and a former host (with his then-wife Tammy Faye Bakker) of The PTL Club, a popular evangelical Christian television program. ... Ernest Miller Hemingway (July 21, 1899 — July 2, 1961) was an American novelist, short-story writer, and journalist. ... GS1 is a global organization dedicated to the design and implementation of global standards and solutions to improve the efficiency and visibility of supply and demand chains globally and across multiple sectors. ...

Historical years

• 49 A.D., 49 B.C., 1949, 2049, etc.

Events Rome Emperor Claudius marries his niece Agrippina the younger (approximate date). ... Consuls: Lucius Cornelius Lentulus Crus, Gaius Claudius Marcellus Maior. ... Year 1949 (MCMXLIX) was a common year starting on Saturday (link will display the full calendar) of the Gregorian calendar. ... 2049 (MMXLIX) will be a common year starting on Friday of the Gregorian calendar. ...

References

1. ^ Hammel, E.F. (2000). "The taming of "49" — Big Science in little time. Recollections of Edward F. Hammel, pp. 2-9. In: Cooper N.G. Ed. (2000). Challenges in Plutonium Science". Los Alamos Science 26 (1): 2–9. 
2. ^ Hecker, S.S. (2000). "Plutonium: an historical overview. In: Challenges in Plutonium Science". Los Alamos Science 26 (1): 1–2.