“1701 (number)”的意思、由来-开放百科全书

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1701 (number)

释义

In mathematics
In other fields
References

{{about|the number 1701|other uses of 1701|1701 (disambiguation)}}{{Infobox number
| number = 1701
| divisor = 1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701
}}

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 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 other fields

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

1. ^{{cite book|last1=Jameson|first1=W.C.|title=The Silver Madonna and Other Tales of America's Greatest Lost Treasures|date=2013|publisher=Taylor Trade Publishing, an imprint of The Rowman & Littlefield Publishing Group, Inc.|location=Lanham, Maryland|isbn=1589798406|page=117}}
2. ^{{cite web |title=anarchy golf - Harshad numbers |url=http://golf.shinh.org/p.rb?Harshad+numbers |website=golf.shinh.org |accessdate=2 August 2018}}
3. ^{{cite book|last1=Robinson|first1=Ben|last2=Okuda|first2=Marcus Riley ; technical consultant: Michael|title=U.S.S. Enterprise NX-01, NCC-1701, NCC-1701-A to NCC-1701-E : owners' workshop manual|date=2010|publisher=Gallery Books|location=New York|isbn=1451621299|edition=1st Gallery Books hardcover}}

1 : Integers

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