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1729 is known as the Hardy–Ramanujan number, or a taxicab number after a famous anecdote of the British mathematician G. H. Hardy regarding a hospital visit to the Indian mathematician Srinivasa Ramanujan.

References throughout Futurama[]

  • In Xmas Story, Bender gets a card stating he is his mother's 1729th son.
  • The Nimbus's registration number is BP-1729.
  • Bender and Flexo both have serial numbers that are the sum of two cubes (either 12 cubed (1728) and 1 cubed (1) or 10 cubed (1000) and 9 cubed (729), depending on how you interpreted it).
  • In The Farnsworth Parabox, one of the universes is Universe 1729.
  • A taxicab in Bender's Big Score is the number 87539319, which is the sum of two positive cubes in 3 ways.