Concept information
Preferred term
weird number
Definition
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In number theory, a weird number is a natural number that is abundant but not semiperfect. In other words, the sum of the proper divisors (divisors including 1 but not itself) of the number is greater than the number, but no subset of those divisors sums to the number itself.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Weird_number)
Broader concept
In other languages
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French
URI
http://data.loterre.fr/ark:/67375/PSR-DXXMSLLP-0
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