Постоянная Капрекара (Russian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Постоянная Капрекара" in Russian language version.

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numbergossip.com

  • Tanya Khovanova. 6174. Number Gossip.

numbersaplenty.com

oeis.org

  • Последовательность A005153 в OEIS = Practical numbers: positive integers n such that every k <= sigma(n) is a sum of distinct divisors of n. Also called panarithmic numbers.
  • Последовательность A083207 в OEIS = Zumkeller numbers: numbers n whose divisors can be partitioned into two disjoint sets whose sums are both sigma(n)/2 // Фрагмент: 6162, 6168, 6174, 6180, 6186
  • Последовательность A003635 в OEIS = Inconsummate numbers in base 10: no number is this multiple of the sum of its digits (in base 10)
  • Последовательность A027444 в OEIS = a(n) = n^3 + n^2 + n
  • Последовательность A134605 в OEIS = Composite numbers such that the square root of the sum of squares of their prime factors (with multiplicity) is an integer

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