51 (fifty-one) is the natural number 51 following 50 and preceding 52. In mathematics, a natural number can mean either an element of the set {1, 2, 3, ...} (i. ... This article is about the year 51. ... 50 (fifty) is the number following 49 and preceding 51. ... 52 (fifty-two) is the natural number following 51 and preceding 53. ...

← 50 51 52 53 54 55 56 57 58 59 → 49 (forty-nine) is the natural number following 48 and preceding 50. ... 50 (fifty) is the number following 49 and preceding 51. ... 52 (fifty-two) is the natural number following 51 and preceding 53. ... 53 (fifty-three) is the natural number following 52 and preceding 54. ... 54 (fifty-four) is the natural number following 53 and preceding 55. ... 55 is the natural number following 54 and preceding 56. ... 56 (fifty-six) is the natural number following 55 and preceding 57. ... 57 (fifty-seven) is the natural number following 56 and preceding 58. ... 58 is the natural number following 57 and preceding 59. ... 59 (fifty-nine) is the natural number following 58 and preceding 60. ... 60 (sixty) is the natural number following 59 and preceding 61. ... 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 → For other uses, see zero or 0. ... 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	51 fifty-one
Ordinal	51st fifty-first
Factorization
Divisors	1, 3, 17, 51
Roman numeral	LI
Binary	110011
Hexadecimal	33

Look up fifty-one in
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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, 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. ... Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...

In mathematics

Fifty-one is a pentagonal number as well as a centered pentagonal number (one of the few numbers to be both) and an 18-gonal number and a Perrin number. It is also the 6th Motzkin number, telling the number of ways to draw non-intersecting chords between any six points on a circle's boundary, no matter where the points may be located on the boundary. A visual representation of the first six pentagonal numbers A pentagonal number is a figurate number that extends the concept of triangular and square numbers to the pentagon, but, unlike the first two, the patterns involved in the construction of pentagonal numbers are not rotationally symmetrical. ... A centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers. ... In mathematics, the Perrin numbers are defined by the recurrence relation P(0) = 3, P(1) = 0, P(2) = 2, and P(n) = P(n − 2) + P(n − 3) for n > 2. ... In mathematics, a Motzkin number for a given number n is the number of different ways of drawing non-intersecting chords on a circle between n points. ...

In science

• The atomic number of antimony.

It has been suggested that List of elements by atomic number be merged into this article or section. ... General Name, Symbol, Number antimony, Sb, 51 Chemical series metalloids Group, Period, Block 15, 5, p Appearance silvery lustrous grey Standard atomic weight 121. ...

Astronomy

• Messier object M51, a magnitude 8.0 spiral galaxy in the constellation Canes Venatici, also known as the Whirlpool Galaxy
• The New General Catalogue object NGC 51, a spiral galaxy in the constellation Andromeda
• The Saros number of the solar eclipse series which began on -1407 September 2 and ended on 108 February 29. The duration of Saros series 51 was 1514.5 years, and it contained 85 solar eclipses. The Saros number of the lunar eclipse series which began on -1105 June 13 and ended on 211 August 12. The duration of Saros series 51 was 1316.2 years, and it contained 74 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. ... M51 may refer to: The Whirlpool Galaxy, (also known as Spiral Galaxy M51, Messier Object 51, Messier 51, M51, or NGC 5194), a classic spiral galaxy located in the Canes Venatici 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. ... It has been suggested that spiral nebula be merged into this article or section. ... This article or section does not adequately cite its references or sources. ... Canes Venatici (Latin for Hunting dogs) is a small northern constellation that was introduced by Johannes Hevelius in the 17th century. ... The Whirlpool Galaxy (also known as Messier 51, M51, or NGC 5194) is an interacting[3] grand-design[4] spiral galaxy located at a distance of approximately 23 million light-years in the constellation Canes Venatici. ... The New General Catalogue (NGC) is the most well-known catalogue of deep sky objects in amateur astronomy. ... It has been suggested that spiral nebula be merged into this article or section. ... Andromeda (IPA: ) 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. ... Photo taken during the 1999 eclipse. ... September 2 is the 245th day of the year (246th in leap years) in the Gregorian calendar. ... For other uses, see number 108. ... February 29th, or bissextile day, is the 60th day of a leap year in the Gregorian Calendar, with 306 days remaining. ... Time lapse movie of the 3 March 2007 lunar eclipse A lunar eclipse occurs whenever the Moon passes through some portion of the Earths shadow. ... is the 164th day of the year (165th in leap years) in the Gregorian calendar. ... This article is about the year 211. ... August 12 is the 224th day of the year (225th in leap years) in the Gregorian calendar. ...

In sports

• The jersey number of American football Hall of Famer Dick Butkus, linebacker for the Chicago Bears who retired his jersey number in 1994
• The jersey number of Michael Ruffin, NBA player for the Washington Wizards
• The trademark car number of racing driver Greg Murphy
• The jersey number of Bernie Williams, MLB player for the New York Yankees
• Former jersey number of Randy Johnson, MLB pitcher while he was with the Seattle Mariners and Arizona Diamondbacks. When he was acquired by the Yankees, he began to use the number 41, since 51 was already taken by Bernie Williams
• St. Louis Cardinal Willie McGee wore #51

The Pro Football Hall of Fame is technically the National Football Leagues Hall of Fame. ... Dick Buttkiss (born December 9, 1942 in Chicago, Illinois) is a former American football player and actor. ... This article or section does not cite any references or sources. ... City Chicago, Illinois Other nicknames Da Bears, The Monsters of the Midway Team colors Navy Blue, Orange and White Head Coach Lovie Smith Owner Virginia Halas McCaskey Chairman Michael McCaskey General manager Jerry Angelo Fight song Bear Down, Chicago Bears Mascot Staley Da Bear League/Conference affiliations Independent (1919) National... Michael David Ruffin (born 21 January 1977 in Denver, Colorado) is an American professional basketball player in the NBA. After playing college basketball at the University of Tulsa, Ruffin was drafted in the second round of the 1999 NBA Draft by the Chicago Bulls. ... “NBA” redirects here. ... The Washington Wizards are a professional basketball team based in Washington, D.C.. They play in the National Basketball Association (NBA). ... Greg Murphy (23 August 1972) is a New Zealand racing driver. ... For other persons named Bernard Williams, see Bernard Williams (disambiguation). ... Major league affiliations American League (1901–present) East Division (1969–present) Current uniform Retired Numbers 1, 3, 4, 5, 7, 8, 8, 9, 10, 15, 16, 23, 32, 37, 44, 49 Name New York Yankees (1913–present) New York Highlanders (1903-1912) Baltimore Orioles (1901-1902) (Also referred to as... For other persons named Randy Johnson, see Randy Johnson (disambiguation). ... Major league affiliations American League (1977–present) West Division (1977–present) Current uniform Retired Numbers 42 Name Seattle Mariners (1977–present) Other nicknames The Ms Ballpark Safeco Field (1999–present) King County Domed Stadium (Kingdome) (1977-1999) Major league titles World Series titles (0) none AL Pennants (0) None... Major league affiliations National League (1998–present) West Division (1998–present) Current uniform Retired Numbers 42 Name Arizona Diamondbacks (1998–present) Other nicknames The D-Backs, The Snakes Ballpark Chase Field (1998–present) a. ... This article needs additional references or sources for verification. ... Major league affiliations National League (1892–present) Central Division (1994–present) Current uniform Retired Numbers 1, 2, 6, 9, 14, 17, 20, 42, 42, 45, 85 Name St. ...

In other fields

Area 51

Fifty-one is: Image File history File links Download high resolution version (800x730, 118 KB) Area 51 groom lake: North Base - Hangars and Housing Source: FAS File links The following pages link to this file: 51 (number) ... Image File history File links Download high resolution version (800x730, 118 KB) Area 51 groom lake: North Base - Hangars and Housing Source: FAS File links The following pages link to this file: 51 (number) ... Area 51 (also known as Air Force Flight Test Center (Detachment 3)[1], Dreamland, Paradise Ranch[2], Home Base, Watertown Strip, Groom Lake[3], The Box, Neverland, and other names) is a remote tract of land in the southwestern portion of Lincoln County in southern Nevada, located at , , at the...

• The code for international direct dial phone calls to Peru
• The model number of the P-51 Mustang WWII fighter aircraft
• Area 51, a parcel of U.S. military-controlled land in southern Nevada, apparently containing a secret aircraft testing facility
• Part of the title of a collection of stories by Lord Dunsany, Fifty-One Tales
• The number of the fire station and rescue engine in the TV series Emergency!
• The number of Rowdy Burns's car (Michael Rooker), later Cole Trickle's (Tom Cruise) number in the film Days of Thunder
• Washington D.C. and Puerto Rico often mentioned as the future "51st State"
• Owning 51% of stocks makes one a major shareholder
• Samuel L. Jackson starred in "Formula 51” "a.k.a. “51st State"
• "Paul is Live" album (1993): Paul McCartney's cover shot in front of London's Abbey Road Studios. A parody of the original Abbey Road. Paul, then 51, is wearing shoes, and the Volkswagen bears a license plate that reads "51 IS" (instead of "28 IF" as on Abbey Road).
• "51st anniversary" song by Jimi Hendrix
• "Come in Number 51, Your Time is Up" song by Pink Floyd
• Bob Dylan: Highway 51 Blues and the name of a band
• The Parker 51, introduced in 1941, may well be the most famous fountain pen ever made
• A brand of pastis (anise liqueur) manufactured by Pernod Ricard
• "Cachaça 51" is the brand name of a cachaça produced by a Companhia Müller de Bebidas in Pirassununga, São Paulo, Brasil.
• In Home Alone 2: Lost in New York, Uncle Rob's apartment that Kevin McCallister goes to is numbered 51.

The North American P-51 Mustang was an American long-range single-seat fighter aircraft that entered service with Allied air forces in the middle years of World War II. The P-51 became one of the conflicts most successful and recognizable aircraft. ... Area 51 (also known as Air Force Flight Test Center (Detachment 3)[1], Dreamland, Paradise Ranch[2], Home Base, Watertown Strip, Groom Lake[3], The Box, Neverland, and other names) is a remote tract of land in the southwestern portion of Lincoln County in southern Nevada, located at , , at the... This article needs additional references or sources for verification. ... Edward John Moreton Drax Plunkett, 18th Baron Dunsany (24 July 1878 – 25 October 1957) was an Anglo-Irish writer and dramatist, notable for his work in fantasy published under the name Lord Dunsany. ... Emergency! was a popular crime drama/medical television series that was produced by Mark VII Limited (Jack Webbs company) and distributed by Universal Studios. ... Michael Rooker (born April 6, 1955 in Jasper, Alabama) is an American actor. ... Tom Cruise (born Thomas Cruise Mapother IV on July 3, 1962) is an Academy Award-nominated, Golden Globe Award-winning American actor and film producer. ... Days of Thunder is an auto racing drama film released in 1990 by producers Don Simpson and Jerry Bruckheimer and director Tony Scott. ... Aerial photo (looking NW) of the Washington Monument and the White House in Washington, DC. Washington, D.C., officially the District of Columbia (also known as D.C.; Washington; the Nations Capital; the District; and, historically, the Federal City) is the capital city and administrative district of the United... A U.S. 51 star flag has been designed in case of a 51st state actually joining the United States. ... Paul Is Live is a live album by Paul McCartney released in 1993 during his New World Tour in support of Off the Ground. ... Sir James Paul McCartney, MBE (born 18 June 1942) is an Academy Award- and Grammy Award-winning English singer, songwriter and multi-instrumentalist who first gained worldwide fame as one of the founding members of The Beatles. ... This article is about the capital of England and the United Kingdom. ... This article or section does not cite any references or sources. ... Back cover The back cover of the original 1969 UK LP. Note that Her Majesty is not listed, unlike later reissues and the compact disc version - originaly making it a hidden track. ... Volkswagen AG (ISIN: DE0007664005), or VW, is an automobile manufacturer based in Wolfsburg, Germany. ... This article contains a trivia section. ... Pink Floyd are an English rock band that earned recognition for their psychedelic rock music, and, as they evolved, for their avant-garde progressive rock music. ... Bob Dylan (born Robert Allen Zimmerman, May 24, 1941) is an American singer-songwriter, author, musician, and poet who has been a major figure in popular music for five decades. ... The following highways are numbered 51: U.S. Route 51 State Route 51 (Arizona) State Route 51 (California) State Road 51 (Florida) State Road 51 (Indiana) Maryland Route 51 M-51 (Michigan highway) Highway 51 (Minnesota) Route 51 (Missouri) Nevada State Route 51 New Hampshire Route 51 New Mexico State... The Parker 51, introduced in 1941, may well be the most famous fountain pen ever made. ... For the movie, see 1941 (film). ... A fountain pen is a writing instrument, more specifically a pen, that contains a reservoir of water-based ink that is fed to a nib through a feed via a combination of gravity and capillary action. ... A glass of diluted pastis French pastis Pastis is an anise-flavored liqueur and apéritif from France, typically containing 40-45% alcohol by volume, although there exist alcohol-free varieties. ... Pernod Ricard is a French company producing alcoholic beverages. ... Pirassununga is a municipality/county in the state of São Paulo in Brazil. ... Nickname: Motto: Non ducor, duco(Latin) I am not led, I lead Location in the São Paulo state. ... Home Alone 2: Lost in New York (1992) is the sequel to the film Home Alone. ...

Historical years

51 A.D., 51 B.C., 1951, 2051, etc. This article is about the year 51. ... Centuries: 2nd century BC - 1st century BC - 1st century Decades: 100s BC 90s BC 80s BC 70s BC 60s BC - 50s BC - 40s BC 30s BC 20s BC 10s BC 0s BC Years: 56 BC 55 BC 54 BC 53 BC 52 BC 51 BC 50 BC 49 BC 48... Year 1951 (MCMLI) was a common year starting on Monday (link will display the full calendar) of the Gregorian calendar. ... Centuries: 20th century - 21st century - 22nd century Decades: 2000s 2010s 2020s 2030s 2040s - 2050s - 2060s 2070s 2080s 2090s 2100s Years: 2046 2047 2048 2049 2050 - 2051 - 2052 2053 2054 2055 2056 The year 2051 (MMLI) in the Gregorian calendar corresponds to 5811-5812 in the Hebrew calendar. ...