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Happy number

Happy number

Numbers with a certain property involving recursive summation.

Epic
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Epic1 copy

First pulled by Bob67, Oct 25, 2026

Wikipedia views per dayLast 30 days 4,613

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 1,353 clicks on its links

  1. Number theory

    Branch of pure mathematics.

    8.4%

  2. 42 (Doctor Who)

    2007 Doctor Who episode.

    7.2%

  3. Narcissistic number

    Concept in number theory.

    5.8%

  4. Duodecimal

    Base-12 numeral system.

    0.74%

  5. Binary number

    Number expressed in the base-2 numeral system.

    0.74%

Readers come from

Share of the 3,784 readers arriving from another article

  1. 13 (number)

    Natural number.

    13%

  2. 28 (number)

    Natural number.

    6.6%

  3. 74 (number)

    Natural number.

    6%

  4. 23 (number)

    Natural number.

    4.9%

  5. 10

    Natural number.

    3.9%

  6. 888 (number)

    Natural number.

    3.3%

  7. 42 (Doctor Who)

    2007 Doctor Who episode.

    3.1%

  8. Narcissistic number

    Concept in number theory.

    2.3%

  9. Integer sequence

    Ordered list of whole numbers.

    2.3%

  10. 700 (number)

    Natural number.

    2.2%