pseudoperfect

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adjective

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.”

Similar
semiperfect
Scrabble 23
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Meanings

adjectivepseudoperfect (comparative more pseudoperfect, superlative most pseudoperfect)

comparative more pseudoperfect · superlative most pseudoperfect

  1. mathematicsOf 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: semiperfect

Synonyms & antonyms

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

Similar
semiperfect
Also see
semiperfect
Cite this entry
APA

pseudoperfect. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pseudoperfect

MLA

“pseudoperfect.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pseudoperfect. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “pseudoperfect,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pseudoperfect.

Source: pseudoperfect on Wiktionary, CC BY-SA 4.0.