pseudoperfect

English

Adjective

pseudoperfect (comparative more pseudoperfect, superlative most pseudoperfect)

1. (mathematics) Of a number, having proper divisors, some or all of which sum to the number itself.

   Synonym: semiperfect

   The number 18 is pseudoperfect, because 3 + 6 + 9 = 18.

Derived terms

• pseudoperfect number