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The New Coffee Room

  1. TNCR
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  3. Puzzle Time: self-referential number

Puzzle Time: self-referential number

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  • J Online
    J Online
    jon-nyc
    wrote on 30 Aug 2020, 14:26 last edited by
    #1

    The first digit of a certain 8-digit integer N is the number of zeroes in the (ordinary, decimal) representation of N. The second digit is the number of ones; the third, the number of twos; the fourth, the number of threes; the fifth, the number of fours; the sixth, the number of fives; the seventh, the number of sixes; and, finally, the eighth is the total number of distinct digits that appear in N.

    What is N?

    Only non-witches get due process.

    • Cotton Mather, Salem Massachusetts, 1692
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    • K Offline
      K Offline
      Klaus
      wrote on 30 Aug 2020, 14:47 last edited by Klaus
      #2

      ||23110105||

      Another diophantine equation. The interesting question is how to get the solution analytically, without trying.

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      30 Aug 2020, 14:26


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