The 56 (number) reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

56 (number)

56 is the natural number following 55 and preceding 57.

List of numbers — Integers << 50 51 52 53 54 55 56 57 58 59 >>
Cardinal	fifty-six
Ordinal	56th (fifty-sixth)
Factorization
Divisors	2, 4, 7, 8, 14, 28
Roman numeral	LVI
Binary	111000
Hexadecimal	38

In mathematics

Fifty-six is the sum of the first six triangular numbers (making it a tetrahedral number), as well as the sum of six consecutive primes (3 + 5 + 7 + 11 + 13 + 17). It is also a tetranacci number.

In other fields

Fifty-six is also:

• The atomic number of barium.
• The number of men who signed the United States Declaration of Independence.
• The code for international direct dial phone calls to Chile.
• The name of the town Fifty-Six, Arkansas.
• The number of men of Netophah at the Census of men of Israel upon return from exile (Holy Bible, Ezra 2:22).
• The year AD 56, 56 BC, or 1956, and thus the symbol of the anti-Soviet revolution in Hungary.

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