<span class="searchmatch">semiperfect</span> <span class="searchmatch">numbers</span> plural of <span class="searchmatch">semiperfect</span> number...
<span class="searchmatch">semiperfect</span> number (plural <span class="searchmatch">semiperfect</span> <span class="searchmatch">numbers</span>) (mathematics) A number which is the sum of some, or all, of its proper divisors. Synonym: pseudoperfect...
pseudoperfect number (plural pseudoperfect <span class="searchmatch">numbers</span>) Synonym of <span class="searchmatch">semiperfect</span> number (“a number, some or all of whose proper divisors sum to itself”)....
Wikipedia weird number (plural weird <span class="searchmatch">numbers</span>) (number theory) A natural number that is abundant but not <span class="searchmatch">semiperfect</span>; one for which the sum of the proper...
multimagic cube pantriagonal magic cube perfect magic cube satanic square <span class="searchmatch">semiperfect</span> magic cube simple magic cube sudoku trimagic cube Category:magic squares...
Sagan's number saponification number schizophrenic number Schröder number <span class="searchmatch">semiperfect</span> number sex number Sierpinski number sieve number silent number single-number...
abundance abundancy index amicable number deficient number perfect number <span class="searchmatch">semiperfect</span> number sociable number Divisor function on Wikipedia.Wikipedia abundant...