1. Weird numberIn 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.
Read “Weird number” on English Wikipedia
Read “不思議数” on Japanese Wikipedia
Read “Weird number” on DBpedia
Read “Weird number” on English Wikipedia
Read “不思議数” on Japanese Wikipedia
Read “Weird number” on DBpedia
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