almost perfect number
natural number whose proper divisors sum to one less than itself
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almost perfect number
Summary
almost perfect number ranks in the top 2% of general entities by monthly Wikipedia readership (33 views/month).[1]
Key Facts
- almost perfect number's subclass of is recorded as integer[2].
- almost perfect number's Freebase ID is recorded as /m/01vmvm[3].
- almost perfect number's defining formula is recorded as \sigma(n)=2n-1[4].
- almost perfect number's MathWorld ID is recorded as AlmostPerfectNumber[5].
- almost perfect number's schematic is recorded as Deficient number Cuisenaire rods 8.png[6].
- almost perfect number's maintained by WikiProject is recorded as WikiProject Mathematics[7].
- almost perfect number's Microsoft Academic ID is recorded as 2781267937[8].
- almost perfect number's in defining formula is recorded as \sigma[9].
- almost perfect number's in defining formula is recorded as n[10].
Why It Matters
almost perfect number ranks in the top 2% of general entities by monthly Wikipedia readership (33 views/month).[1] It has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[11]