57 (number)

57 (fifty-seven) is the natural number following 56 and preceding 58.

56 57 58
Cardinalfifty-seven
Ordinal57th
(fifty-seventh)
Factorization3 × 19
Divisors1, 3, 19, 57
Greek numeralΝΖ´
Roman numeralLVII
Binary1110012
Ternary20103
Senary1336
Octal718
Duodecimal4912
Hexadecimal3916

In mathematics

Fifty-seven is the sixteenth discrete semiprime[1] (specifically, the sixth distinct semiprime of the form , where is a higher prime).[2] It also forms the fourth discrete semiprime pair with 58.

57 is the third Blum integer since its two prime factors (3 and 19) are both Gaussian primes.[3] 57 has an aliquot sum of 23, which makes it the tenth number to contain a prime aliquot sum.[4] This also makes 57 the first composite member of the 23-aliquot tree (..., 57, 23, 1, 0). The only other numbers to generate an aliquot sum of 57 are 99, 159, 343, 559, and 703;[5] where 343 is the cube of 7,[6] and 703 the sum of the first thirty-seven nonzero integers.[7] Fifty seven is also a repdigit in base-7 (111).[8]

57 is the fifth Leyland number, as it can be written in the form:[9]

57 is the number of compositions of 10 into distinct parts.[10]

57 is the seventh fine number, equivalently the number of ordered rooted trees with seven nodes having root of even degree.[11]

57 is also the number of nodes in a regular octagon when all of its diagonals are drawn,[12] and the first non-trivial icosagonal (20-gonal) number.[13]

In geometry, there are:

The split Lie algebra E7+1/2 has a 57-dimensional Heisenberg algebra as its nilradical, and the smallest possible homogeneous space for E8 is also 57-dimensional.[16]

57 lies between prime numbers 53 and 61, which are the only two prime numbers less than 71 that do not divide the order of any sporadic group, inclusive of the six pariahs. 71, the twentieth prime number, is the largest supersingular prime that divides the largest of these groups[17] while 57, on the other hand, is the fortieth composite number whose sum of divisors σ(57) is 80 and averages 20.[18][19]

Although fifty-seven is not prime, it is jokingly known as the "Grothendieck prime" after a story in which mathematician Alexander Grothendieck supposedly gave it as an example of a particular prime number. This story is repeated in Part 2 of a biographical article on Grothendieck in Notices of the American Mathematical Society.[20]

In science

Astronomy

In fiction and media

In films

  • Passenger 57, a film starring Wesley Snipes
  • In the movie Contagion, Vaccine #57 successfully protects the lab monkey from infection.
  • The Terminal (2004) starring Tom Hanks. There are 57 members of the jazz band that Viktor Navorski carries a picture of with him.
  • in the movie Eraser (1996), the weapons trade operation took place at the Baltimore Docks, Pier 57.

In games

  • In the game Hollow Knight, a character named Zote the Mighty has 57 precepts, all of which offer rather humorous, lackluster, or completely bad advice to the player.

In literature

In radio

In television

In food

  • Heinz 57, a brand of sauce, and the number of varieties of foods claimed to be produced by the H.J. Heinz Company

In music

  • "Incident on 57th Street", a song by Bruce Springsteen and the E Street Band, from their 1973 album, The Wild, the Innocent and the E Street Shuffle
  • "57 Channels (And Nothin' On)", a song by Bruce Springsteen, from his 1992 album Human Touch
  • "57", the name of a song by Biffy Clyro on their 2002 debut album, Blackened Sky
  • Shure SM57, considered the workhorse of recording microphones

In organizations

  • The number of the French department Moselle

In places

In transportation and vessels

In other fields

See also

References

  1. Sloane, N. J. A. (ed.). "Sequence A001358 (Semiprimes (or biprimes): products of two primes.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-08-08.
  2. Sloane, N. J. A. (ed.). "Sequence A001748 (Semiprimes of the form a(n) equal to 3 x prime(n).)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-08-08.
  3. "Sloane's A016105 : Blum integers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  4. Sloane, N. J. A. (ed.). "Sequence A001065 (Sum of proper divisors (or aliquot parts) of n: sum of divisors of n that are less than n.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-06-24.
  5. Sloane, N. J. A. (ed.). "Sequence A001065". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-08-08.
  6. Sloane, N. J. A. (ed.). "Sequence A000578 (The cubes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-08-08.
  7. Sloane, N. J. A. (ed.). "Sequence A000217 (Triangular numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-08-08.
  8. Sloane, N. J. A. (ed.). "Sequence A048332 (Numbers that are repdigits in base 7)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-11-30.
  9. "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  10. Sloane, N. J. A. (ed.). "Sequence A032020 (Number of compositions (ordered partitions) of n into distinct parts)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-05-24.
  11. Sloane, N. J. A. (ed.). "Sequence A000957 (Fine's sequence (or Fine numbers))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-06-01.
  12. Sloane, N. J. A. (ed.). "Sequence A007569 (Number of nodes in regular n-gon with all diagonals drawn.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-04-04.
  13. Sloane, N. J. A. (ed.). "Sequence A051872 (20-gonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  14. Skilling, J. (1975). "The complete set of uniform polyhedra". Philosophical Transactions of the Royal Society of London. Series A. Mathematical and Physical Sciences. 278 (1278): 111–135. Bibcode:1975RSPTA.278..111S. doi:10.1098/rsta.1975.0022. ISSN 0080-4614. JSTOR 74475. MR 0365333. S2CID 122634260.
  15. Coxeter, H. S. M. (1982), "Ten toroids and fifty-seven hemidodecahedra", Geometriae Dedicata, 13 (1): 87–99, doi:10.1007/BF00149428, MR 0679218, S2CID 120672023
  16. Vogan, David (2007), "The character table for E8" (PDF), Notices of the American Mathematical Society, 54 (9): 1122–1134, MR 2349532
  17. Sloane, N. J. A. (ed.). "Sequence A002267 (The 15 supersingular primes: primes dividing order of Monster simple group)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-03-09.
  18. Sloane, N. J. A. (ed.). "Sequence A002808 (The composite numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-03-09.
  19. Sloane, N. J. A. (ed.). "Sequence A000203 (...the sum of the divisors of n.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-03-09.
  20. Jackson, Allyn (November 2004). "Comme Appelé du NéantAs if Summoned from the Void: The Life of Alexandre Grothendieck" (PDF). Notices of the American Mathematical Society. 51 (10).
  21. The NGC / IC Project - Home of the Historically Corrected New General Catalogue (HCNGC) since 1993
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