Happy Number - Special Happy Numbers

Special Happy Numbers

  • 986,543,210 : Greatest happy number with no redundant digits
  • 1,234,456,789 : Smallest zeroless pandigital happy number
  • 10,234,456,789 : Smallest pandigital happy number
  • 13,456,789,298,765,431 : Smallest zeroless pandigital palindromic happy number
  • 1,034,567,892,987,654,301 : Smallest pandigital palindromic happy number

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    —Benjamin Harrison (1833–1901)

    “I think the girl who is able to earn her own living and pay her own way should be as happy as anybody on earth. The sense of independence and security is very sweet.”
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    “I’m not even thinking straight any more. Numbers buzz in my head like wasps.”
    —Kurt Neumann (1906–1958)