29 (twenty-nine) is the natural number following 28 and preceding 30. Natural number can mean either a positive integer (1, 2, 3, 4, ...) or a non-negative integer (0, 1, 2, 3, 4, ...). Natural numbers have two main purposes: they can be used for counting (there are 3 apples on the table), or they can be used for ordering (this is... 28 (twenty-eight) is the natural number following 27 and preceding 29. ... 30 (thirty) is the natural number following 29 and preceding 31. ...

In linguistics, cardinal numbers is the name given to number words that are used for quantity (one, two, three), as opposed to ordinal numbers, words that are used for order (first, second, third). ... 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. ... Jump to: navigation, search In mathematics, a prime number (or prime) is a natural number greater than one whose only positive divisors are one and itself. ... The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. ... The binary numeral system represents numeric values using two symbols, typically 0 and 1. ... In mathematics and computer science, hexadecimal, 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 tenth prime number, and also the third primorial prime, the next prime number as well as primorial prime being thirty-one, with which it comprises a twin prime. Twenty-nine is also the sixth Sophie Germain prime. It is also the sum of three squares, 2² + 3² + 4². It is a Lucas prime, a Pell number and a tetranacci number. It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Jump to: navigation, search In mathematics, a prime number (or prime) is a natural number greater than one whose only positive divisors are one and itself. ... A primorial prime is a number that is one less or one more than a primorial and also a prime number. ... 31 is the natural number following 30 and preceding 32. ... A twin prime is a prime number that differs from another prime number by two. ... A prime number p is called a Sophie Germain prime if 2p + 1 is also prime. ... A Lucas prime is a Lucas number that is prime. ... In mathematics, the Pell numbers and Companion Pell Numbers (Pell-Lucas Numbers) are both sequences of integers. ... In mathematics, the Fibonacci numbers form a sequence defined recursively by: In words: you start with 0 and 1, and then produce the next Fibonacci number by adding the two previous Fibonacci numbers. ... An Eisenstein prime is an Eisenstein integer aω + b that has only two Eisenstein divisors, the complex cube root of unity and aω + b itself. ...

None of the first 29 natural numbers have more than two different prime factors. This is the longest such consecutive sequence.

In science

• The atomic number of copper

In astronomy, The atomic number (Z) is a term used in chemistry and physics to represent the number of protons found in the nucleus of an atom. ... General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic brown Atomic mass 63. ... Astrometry: the study of the position of objects in the sky and their changes of position. ...

Messier object M29, a magnitude 9.0 open cluster in the constellation Cygnus

The New General Catalogue object NGC 29, a spiral galaxy in the constellation Andromeda

The Saros number of the solar eclipse series which began on -1881 March 1 and ended on -583 April 19. The duration of Saros series 29 was 1298.1 years, and it contained 73 solar eclipses.

The Saros number of the lunar eclipse series which began on -1814 July 21 and ended on -317 January 5. The duration of Saros series 29 was 1496.5 years, and it contained 84 lunar eclipses.

The lunar month is very close to twenty-nine days.

Table of all 110 Messier objects. ... Open Cluster M29 (also known as Messier Object 29, Messier 29, M29, or NGC 6913) is an open cluster in the Cygnus 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. ... An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still gravitationally bound to each other. ... -1... For the software company, see Cygnus Solutions. ... 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. ... Andromeda is a constellation named for the princess Andromeda (which is Greek for Ruler over men), a character in greek mythology. ... 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. ... Jump to: navigation, search This article needs to be cleaned up to conform to a higher standard of quality. ... March 1 is the 60th day of the year in the Gregorian calendar (61st in leap years). ... Jump to: navigation, search April 19 is the 109th day of the year in the Gregorian calendar (110th in leap years). ... An eclipse occurs whenever the Sun, Earth and Moon line up exactly. ... Jump to: navigation, search July 21 is the 202nd day (203rd in leap years) of the year in the Gregorian Calendar, with 163 days remaining. ... January 5 is the 5th day of the year in the Gregorian Calendar. ... In Egyptian mythology, Month is an alternate spelling for Menthu. ...

In other fields

Twenty-nine is:

• The number of bones in a normal human skull.
• The number of days February has on leap years.
• The number of letters in the Finnish and Norwegian alphabets.
• The designation of Interstate 29, a U. S. freeway that runs from Missouri to North Dakota.
• In the name of the town Twentynine Palms, California, also the name of the adjoining Marine Corps base, affectionately referred to by Marines as "Twentynine Stumps".
• The number of suras in the Qur'an that begin with muqatta'at
• The highest possible score in a hand of Cribbage.
• Historical years: 29 A.D., 29 B.C., or 1929
• A Rubik's Cube can always be solved in 29 moves or less.
• The most dangerous bus in London according to police statistics

A Hippopotamuss skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ... February is the second month of the year in the Gregorian Calendar. ... A leap year (or intercalary year) is a year containing an extra day or month in order to keep the calendar year in sync with an astronomical or seasonal year. ... An alphabet is a complete standardized set of letters — basic written symbols — each of which roughly represents a phoneme of a spoken language, either as it exists now or as it may have been in the past. ... Interstate 29 is an interstate highway in the Midwestern United States. ... State nickname: The Show Me State Other U.S. States Capital Jefferson City Largest city Kansas City (largest metropolitan area is Saint Louis) Governor Matt Blunt (R) Senators Kit Bond (R) Jim Talent (R) Official languages English Area 69,709 mi²; 180,693 km² (21st)  - Land 68,898 mi²; 178... State nickname: Peace Garden State, Roughrider State, Flickertail State Other U.S. States Capital Bismarck Largest city Fargo Governor John Hoeven (R) Official languages English Area 183 272 km² (19th)  - Land 178 839 km²  - Water 4 432 km² (2. ... Twentynine Palms is a city located in San Bernardino County, California. ... See also: Sura (disambiguation). ... The Quran (Arabic: al-qurān literally the recitation; also called Al Qurān Al KarÄ«m or The Noble Quran; or transliterated Quran, Koran, and less commonly Alcoran) is the holy book of Islam. ... A tree diagram of the Quranic initial letters, labelled with the respective numbers of occurrences. ... Cribbage pegging (on a 60-hole board) Cribbage or Crib is a card game that involves forming combinations of cards over a series of hands to accumulate points. ... 29 is my favourite colour!!!!!!!! Events Romans captured Sofia. ... 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: 34 BC 33 BC 32 BC 31 BC 30 BC 29 BC 28 BC 27 BC 26 BC 25 BC 24... Jump to: navigation, search 1929 was a common year starting on Tuesday (link will take you to calendar). ... Rubiks Cube in solved state. ...

External link

On the numbe 29 at Wisdom Portal