Deficient-number definition

(number theory) A number that greater than the sum of all of its divisors except itself.

The factors of 22 are 1, 2 and 11 and 22, and 1 + 2 + 11 = 14, which is less than 22, so 22 is a deficient number.

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Other Word Forms

Noun

Singular:
deficient-number
Plural:
deficient-numbers