139 (number)

139 (number)
139
Cardinal one hundred [and] thirty-nine
Ordinal 139th
(one hundred [and] thirty-ninth)
Factorization prime
Prime 34th
Divisors 1, 139
Roman numeral CXXXIX
Binary 100010112
Octal 2138
Duodecimal B712
Hexadecimal 8B16

139 (One hundred [and] thirty-nine) is the natural number following 138 and preceding 140.

Contents

In mathematics

One hundred [and] thirty-nine is the 34th prime number, so it is divisible only by itself and 1. It is a twin prime with 137. Because 141 is a semiprime, 139 is a Chen prime. 139 is the smallest prime before a prime gap of length 10.[1]

This number is the sum of five consecutive prime numbers (19 + 23 + 29 + 31 + 37).

It is the smallest factor of 64079, the smallest composite Lucas number with a prime index. It is also the smallest factor of the first nine terms of the Euclid–Mullin sequence, making it the tenth term.

139 is a strictly non-palindromic number.

In the military

In sports

In television

  • The TV series Your Show of Shows ran on NBC from 1950 to 1954 with 139 episodes
  • The TV series I Dream of Jeannie ran on NBC from 1965 to 1970 with 139 episodes
  • The TV series CHiPs ran on NBC from 1977 to 1983 with 139 episodes
  • The TV series MacGyver ran on ABC from 1985 to 1992 with 139 episodes
  • The TV series 3rd Rock from the Sun ran on NBC from 1996 to 2001 with 139 episodes

In transportation

In other fields

139 is also:

See also

External links

References

  1. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 139
  2. ^ http://copscoalition.us

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