adj ·Rare ·Advanced level

Definitions

Adjective

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

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

Synonyms

All synonyms

semiperfect

Example

More examples

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

Related phrases

pseudoperfect number

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.