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119 120 121
Cardinal one hundred twenty
Ordinal 120th
(one hundred and twentieth)
Factorization 23× 3 × 5
Divisors 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
Roman numeral CXX
Binary 11110002
Ternary 111103
Quaternary 13204
Quinary 4405
Senary 3206
Octal 1708
Duodecimal A012
Hexadecimal 7816
Vigesimal 6020
Base 36 3C36
The 120-cell (or hecatonicosachoron) is a convex regular 4-polytope consisting of 120 dodecahedral cells

120, variously read as one hundred twenty or one hundred and twenty, is the natural number following 119 and preceding 121.

In English and other Germanic languages, it was also formerly known as "one hundred". This "hundred" of six score is now obsolete, but is described as the long hundred or great hundred in historical contexts.

In mathematics[edit]

120 is the factorial of 5, and the sum of a twin prime pair (59 + 61). 120 is the sum of four consecutive prime numbers (23 + 29 + 31 + 37), four consecutive powers of 2 (8+16+32+64), and four consecutive powers of 3 (3 + 9 + 27 + 81). It is highly composite, superabundant, and colossally abundant number, with its 16 divisors being more than any number lower than it has, and it is also the smallest number to have exactly that many divisors. It is also a sparsely totient number. 120 is the smallest number to appear six times in Pascal's triangle. 120 is also the smallest multiple of 6 with no adjacent prime number, being adjacent to 119 = 7 × 17 and 121 = 112.

It is the eighth hexagonal number and the fifteenth triangular number, as well as the sum of the first eight triangular numbers, making it also a tetrahedral number. 120 is divisible by the first 5 triangular numbers and the first 4 tetrahedral numbers.

120 is the first multiply perfect number of order three (a 3-perfect or triperfect number). The sum of its factors (including one and itself) sum to 360; exactly three times 120. Note that perfect numbers are order two (2-perfect) by the same definition.

120 is divisible by the number of primes below it, 30 in this case. However there is no integer which has 120 as the sum of its proper divisors, making 120 an untouchable number.

The sum of Euler's totient function φ(x) over the first nineteen integers is 120.

120 figures in Pierre de Fermat's modified Diophantine problem as the largest known integer of the sequence 1, 3, 8, 120. Fermat wanted to find another positive integer that multiplied with any of the other numbers in the sequence yields a number that is one less than a square. Leonhard Euler also searched for this number, but failed to find it, but did find a fractional number that meets the other conditions, 777480 / 28792.

The internal angles of a regular hexagon (one where all sides and all angles are equal) are all 120 degrees.

120 is a Harshad number in base 10.

In science[edit]

120 is the atomic number of Unbinilium, an element yet to be discovered.

In religion[edit]

  • The cubits of the height of the Temple building (II Chronicles 3:4)
  • The age at which Moses died (Deut. 34:7).
    • By extension, in Jewish tradition, to wish someone a long life, one says, "Live until 120"
  • The number of Men of the Great Assembly who canonized the Books of the Tanakh and formulated the Jewish prayers
  • The number of talents of gold that the Queen of Sheba gave to Solomon in tribute (I Kings 10:10)
  • The number of princes King Darius set over his kingdom (Daniel 6:2)
  • The summed weight in shekels of the gold spoons offered by each tribal prince of Israel (Num. 7:86).
  • In astrology, when two planets in a person's chart are 120 degrees apart from each other, this is called a trine. This is supposed to bring good luck in the person's life.[1]

In sports[edit]

In other fields[edit]

120 is also:

See also[edit]


  1. ^ "Astrology And The Black Man". Afro American. January 31, 1970. Retrieved December 30, 2010. 
  2. ^ The Game Court, National Basketball Association, retrieved 2014-04-07.
  3. ^ Porter, Darwin; Danforth Prince (2009). Frommer's Austria. Hoboken, New Jersey: Frommer's. p. 482. ISBN 978-0-470-39897-5. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/120_(number) — Please support Wikipedia.
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49 news items

The Globe and Mail

The Globe and Mail
Fri, 14 Aug 2015 17:49:39 -0700

655: Number of deaths in Canada between 2009 and 2014 in which fentanyl was a cause or contributing cause. 120: Number of fentanyl-detected deaths in Alberta in 2014, up from 6 in 2011. 90: Number of fentanyl-detected deaths in B.C. in 2014, up from 13 ...
Mon, 17 Aug 2015 06:44:23 -0700

With this Current ruling government falls well short of 120 number, which is required by the constitution for continuing as minority government. Uncertainty -. In spite of successful agreement over third bail-out package, Greece is facing heightened ...

Dayton Daily News

Dayton Daily News
Thu, 02 Apr 2015 09:03:11 -0700

By the numbers. 2,300: Total number of employees at Assurant in Springfield, making it the largest employer in Clark County. 120: Number of positions being eliminated in Springfield and Dayton this week. 232: Number of positions eliminated since fall ...
San Jose Mercury News
Fri, 26 Jun 2015 15:17:34 -0700

Connectivity champion. Since they put the first Wi-Fi hotspots inside what's now known as AT&T Park in 2004, the San Francisco Giants and AT&T have been bulking up on the network connections inside the stadium. 120: Number of Wi-Fi access points inside ...

Lansing State Journal

Lansing State Journal
Tue, 28 Jul 2015 03:36:38 -0700

... property belonging to deficit-budget school districts, local governments controlled by emergency managers, and municipalities deemed by the state to be “distressed areas” because higher-than-average levels of “economic distress.” •120: Number of ...

Florida Today

Florida Today
Tue, 26 May 2015 07:33:17 -0700

ORLANDO – Finally. That was the feeling Tuesday when the new Orlando VA Medical Center, a sprawling facility that's been under construction for almost seven years, officially opened its doors. More than 400 people, including veterans from Brevard ...


Sat, 04 Apr 2015 13:35:44 -0700

Give me all of the action at that -120 number for Woods to miss the cut. I laid out my reasoning here. I think the general public isn't really aware of just how bad Woods is at the moment. Will Tiger Woods make the cut at Augusta? (Getty Images) Will ...
BBC News
Tue, 25 Dec 2012 00:24:24 -0800

With Guglielmo Marconi opening the first wireless factory in Chelmsford, Essex can claim to be the county that gave the world radio. But as well as creating the airwaves, it boasts connections with many of the most successful songs sent across them.

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