The passage of 10 October 2010 (10/10/10) publicized the fact that, 101010, a binary equivalent of the number 42, is the number that received considerable attention in popular culture because of its appearance in Douglas Adams' 'The Hitchhiker's Guide to the Galaxy' as the answer to "the Ultimate Question of Life, the Universe, and Everything".

The Hitchhiker’s Guide to the Galaxy Fact 12

The passage of 10 October 2010 (10/10/10) publicized the fact that, 101010, a binary equivalent of the number 42, is the number that received considerable attention in popular culture because of its appearance in Douglas Adams’ ‘The Hitchhiker’s Guide to the Galaxy’ as the answer to “the Ultimate Question of Life, the Universe, and Everything”.