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superperfect number · Vinony

EntityQ1164125· pop 13· linked from 229 articles

superperfect number

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positive integer which equals half of the sum of the divisors of the sum of its divisors

Connections

On-Line Encyclopedia of Integer Sequences

figurate number

sociable number

automorphic number

multiply perfect number

International Standard Book Number

digital object identifier

binary numeral system

three-dimensional space

Categories

Divisor function Integer sequences Unsolved problems in number theory

Sources

wikipedia.externallinksexternallink

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