A Self-Descriptive Number

In the number 6210001000:

  • The digit 0 occurs 6 times
  • The digit 1 occurs 2 times
  • The digit 2 occurs 1 time
  • The digit 3 occurs 0 times
  • The digit 4 occurs 0 times
  • The digit 5 occurs 0 times
  • The digit 6 occurs 1 time
  • The digit 7 occurs 0 times
  • The digit 8 occurs 0 times
  • The digit 9 occurs 0 times

See also The Quick Brown Fox …