56 (number)

56 (fifty-six) 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	<math>2^3\cdot 7<math>
Divisors	2, 4, 7, 8, 14, 28
Roman numeral	LVI
Binary	111000
Hexadecimal	38

In mathematics

56 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 and a pronic number.

In other fields

56 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 maximum speed of analog data transmission over a POTS in the 20th century was 56kbps.
• 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.
• In baseball, the number of consecutive games in which Joe DiMaggio had a base hit in 1941, still a record.