Item:Q8758: Difference between revisions
Created a new Item: deficient number, natural integer number for which the sum of its proper strict divisors (other than itself) is less than the number itself |
Created claim: defining formula (P333): \sigma(n)-2n=s(n)-n<0 |
||
(One intermediate revision by the same user not shown) | |||
Property / subclass of | |||
Property / subclass of: natural number / rank | |||
Normal rank | |||
Property / defining formula | |||
\sigma(n)-2n=s(n)-n<0 | |||
Property / defining formula: / rank | |||
Normal rank |