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This page contains numbers appearing in recreational mathematics.

List of numbers appearing in recreational mathematics

69696

A photo of a car with a license plate containing the number 69696.

  • The number 121 is the fourth largest undulating square number; this has been proved by David Moews.
  • 125 is a Canada number.
  • The number 343 is the largest known undulating perfect power with an exponent larger than 2.
  • The number 484 is the third largest undulating square number; this has been proved by David Moews.
  • 581 is a Canada number.
  • The number 676 is the second largest undulating square number; this has been proved by David Moews.
  • 728 is the smaller number in the first Smith brother pair.
  • 729 is the larger number in the first Smith brother pair.
  • 8,549 and 16,999 are the two largest Canada numbers.
  • The number 69,696 is the largest undulating square number; this has been proved by David Moews.

Sources