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42 (forty-two) is a positive integer following 41 and preceding 43. Its ordinal form is written "forty-second" or 42nd.

In the Hitchhiker's Guide to Galaxy science fiction series, a supercomputer named Deep Thought spends 7.5 million years computing the Answer to the Ultimate Question of Life, the Universe, and Everything, arriving at the answer 42. This has earned 42 a place in popular culture, in addition to the shorter name Meaning of Life. A larger number coined in the book — albeit a less culturally significant one — is the Hitchhiker's number.

Properties Edit

954

A picture of Marvin the paranoid android from The Hitchhikers Guide To The Galaxy pointing to the number.

In googology Edit

In Greek-based number-naming systems, 42 is associated with prefix "dutetraconta-", and with prefix "duoquadraginti-" in Latin systems.

André Joyce calls this number Lok or Tien grow. [2]

In sports Edit

There are OEIS A001174(4) = 42 oriented graphs on four unlabeled nodes.

In the Major League Baseball, the jersey number 42 has been retired league-wide for Jackie Robinson.

Sources Edit

  1. https://en.wikipedia.org/wiki/42_(number)
  2. http://michaelhalm.tripod.com/id76.html