56 (number)

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← 55 56 57 →
Cardinal fifty-six
Ordinal 56th
(fifty-sixth)
Factorization 23× 7
Divisors 1, 2, 4, 7, 8, 14, 28, 56
Greek numeral ΝϚ´
Roman numeral LVI
Binary 1110002
Ternary 20023
Quaternary 3204
Quinary 2115
Senary 1326
Octal 708
Duodecimal 4812
Hexadecimal 3816
Vigesimal 2G20
Base 36 1K36

56 (fifty-six) is the natural number following 55 and preceding 57.

Mathematics[edit]

Regular 56-gon, associated by the Pythagoreans with Typhon

56 is:

The maximum determinant in an 8 by 8 matrix of zeroes and ones is 56.

Plutarch[6] states that the Pythagoreans associated a polygon of 56 sides with Typhon and that they associated certain polygons of smaller numbers of sides with other figures in Greek mythology. While it is impossible to construct a perfect regular 56-sided polygon using a compass and straightedge, a close approximation has recently been discovered which it is claimed[7] might have been used at Stonehenge, and it is constructible if the use of an angle trisector is allowed since 56 = 23 × 7.[8]

Science, technology, and biology[edit]

Astronomy[edit]

Music[edit]

Television and film[edit]

Sports[edit]

Organizations[edit]

  • The symbol of the Hungarian Revolution of 1956.
  • Famous Brazilian politician, Enéas Carneiro has an odd way of repeating the number of his party, "Fifty-Six" (cinquenta e seis, in Portuguese), making it a widely repeated jargon in his country.
  • 56 Stuff, an international art community and a record label.
  • Department 56 designer of collectibles, giftware and seasonal decorations such as miniature village houses.

People[edit]

  • Shirley Temple, as a child, wore 56 curls in her hair. Curls were set by her mother who thus made sure of the exact number.
  • Isoroku Yamamoto, named "Isoroku" because his father's age was 56 at his birth, and "Isoroku" is an old Japanese term meaning 56.
  • Avatar Meher Baba said there are always 56 God-realized human beings on the Earth at all times, at the head of the Spiritual Hierarchy.[citation needed]

Geography[edit]

  • The name of the town Fifty-Six, Arkansas.
  • The number of counties in the state of Montana.
  • In the Los Angeles postal district, Zone 56 (now the ZIP Code area 90056) is one of few that is not within the Los Angeles City Limits (90020 and 90044 are others).
  • 56 is the number of the French department Morbihan.
  • There are 56 Longhurst codes.
  • +56 is the code for international direct-dial phone calls to Chile.

Archaeology[edit]

Cosmogony[edit]

History[edit]

Occultism[edit]

  • There should be 56 cards in the Minor Arcana of a Tarot deck.

References[edit]

  1. ^ "Sloane's A000292 : Tetrahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30. 
  2. ^ "Sloane's A000078 : Tetranacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30. 
  3. ^ "Sloane's A002378 : Oblong (or promic, pronic, or heteromecic) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30. 
  4. ^ "Sloane's A024916 : sum_{k=1..n} sigma(k) where sigma(n) = sum of divisors of n". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. 
  5. ^ "Sloane's A059756 : Erdős-Woods numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30. 
  6. ^ Plutarch, Moralia V: 30
  7. ^ Pegs and Ropes: Geometry at Stonehenge
  8. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2015-07-14. Retrieved 2015-02-19. 
  9. ^ Currie, N., "Takemitsu and shakuhachi" Archived 2012-04-10 at the Wayback Machine., Click Opera, Apr. 29, 2007.
  10. ^ Augustin Maurs bio, OVGuide.
  11. ^ Alexander, Caroline. "If the Stones Could Speak: Searching for the Meaning of Stonehenge". National Geographic Magazine. National Geographic Society. Retrieved 14 May 2013. 
  12. ^ Heaven by Lisa Miller, (2010), ISBN 978-0-06-055475-0 - page 13.