Английская Википедия:1701 (number)

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Шаблон:About Шаблон:Infobox number 1701 is the natural number preceding 1702 and following 1700.

In mathematics

1701 is an odd number and a Stirling number of the second kind.

The number 1701 also has unusual properties as it:

  • belongs to a set of numbers such that <math>n^2</math> contains exactly seven different digits.
  • is a decagonal and a 13-gonal number.
  • is divisible by the square of the sum of its digits.
  • belongs to a set of numbers with only palindromic prime factors whose sum is palindromic.
  • is a First Beale cipher.[1]
  • belongs to a set of numbers whose digits of prime factors are either 3 or 7.
  • its reversal digit sequence (1071) is divisible by 7.
  • is a Harshad number.[2]

In Star Trek

In the Star Trek science fiction franchise, NCC-1701 is the designation for several starships named USS Enterprise.[3] Several of these vessels are focal points in the fictional universe created by Gene Roddenberry.

References

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