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19 (onety-nine)

19 is the natural number following 18 and preceeding 1X. It is a Composite number and a Semiprime. Its prime factorisation is 3 x 7.

Approximations[]

  • Binary - 10,101
  • Ternary - 210
  • Octal - 25
  • Dekrimal - 21
  • Tetradozenal - 15
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