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Abundant number - Wikipedia, the free encyclopedia
In mathematics, an abundant number or excessive number is a number n for which σ ( n ) > 2 n . Here σ ( n ) is the sum-of-divisors function: the sum of all positive divisors of n , i...
en.wikipedia.org/wiki/Abundant_number |
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Highly abundant number - Wikipedia, the free encyclopedia
In mathematics, a highly abundant number is a natural number where the sum of its divisors (including itself) is greater than the sum of the divisors of any natural number less than it. Highly abund...
en.wikipedia.org/wiki/Highly_abundant_number |
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Oct 27, 2009 ... Any multiple of a perfect number or an abundant number is also abundant. Every number greater than 20161 can be expressed as a sum of two ...
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An integer $n$ is an abundant number if the sum of the proper divisors of $n$ is more than $n$ itself, or the sum of all the divisors is more than twice $n$ That is, $\sigma(n) > 2n$ with $\sigma(n)$ being the sum of divisors function.
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Abundant number - Definition of Abundant number at Dictionary.com a free online dictionary with pronunciation, synonyms, and translation of Abundant number. Look it up now! ... Use abundant number in a Sentence...
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Definition of abundant number in the Online Dictionary. Multiple meanings, detailed information and synonyms for abundant number. ... 3 definitions found abundant number - Collaborative International Dictionary of English v.0.48 : Number \Num"ber\ (n[u^]m"b[~e]r), n. [OE. nombre, F. nombre, L. numerus; akin to Gr.
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deficient number, abundant number, divisors: deficient number - A positive integer the sum of whose divisors, including 1 but excluding itself, is less than itself. Also known as defective number. Examples: 8, since 1+2+4 8; ... How do I describe in vocabulary form what a deficient number is and what an abundant number is?
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