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56 (number)

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This is thelatest accepted revision,reviewed on19 January 2026.

Natural number
← 5556 57 →
Cardinalfifty-six
Ordinal56th
(fifty-sixth)
Factorization23 × 7
Divisors1, 2, 4, 7, 8, 14, 28, 56
Greek numeralΝϚ´
Roman numeralLVI,lvi
Binary1110002
Ternary20023
Senary1326
Octal708
Duodecimal4812
Hexadecimal3816

56 (fifty-six) is thenatural number following55 and preceding57.

Mathematics

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Regular 56-gon, associated by the Pythagoreans withTyphon

56 is acomposite number, and atetranacci number.[1]

Mythology

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Plutarch[2] states that thePythagoreans associated a polygon of 56 sides withTyphon and that they associated certain polygons of smaller numbers of sides with other figures in Greek mythology.

Organizations

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References

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  1. ^Sloane, N. J. A. (ed.)."Sequence A000078 (Tetranacci numbers)".TheOn-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved2016-05-30.
  2. ^Plutarch,Moralia V: 30
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