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Colossally abundant number - Wikipedia, the free encyclopedia In mathematics, a colossally abundant number (sometimes abbreviated as CA) is a certain kind of natural number. Formally, a number n is colossally abundant if and only if there is an ε > 0 such that for all k > 1, where σ denotes the divisor function. The first few colossally abundant numbers... http://en.wikipedia.org/wiki/Colossally_abundant_number |
Weird number - Wikipedia, the free encyclopedia In mathematics, a weird number is a natural number that is abundant but not semiperfect. http://en.wikipedia.org/wiki/Weird_number |
Achilles number - Wikipedia, the free encyclopedia 108 is a powerful number. Its prime factorization is , and thus its prime factors are 2 and 3. Both 22 = 4 and 32 = 9 are divisors of 108. However, 108 cannot be represented as mk, where m and k are ... http://en.wikipedia.org/wiki/Achilles_number |
PlanetMath: abundant number An integer is an abundant number if the sum of the proper divisors of is more than itself, ... Multiplying a perfect number by some integer gives an abundant number (as long as ). http://planetmath.org/encyclopedia/AbundantNumber.html |
million: Definition, Synonyms and Much More from Answers.com million n. , pl. million or -lions . The cardinal number equal to 10. A million monetary units, such as dollars: made a million in the stock market... http://www.answers.com/topic/million |
Million One million (1,000,000), or one thousand thousand, is the natural number following 999 ... The million is sometimes used in the English language as a metaphor for a very large number, ... http://www.jewel.eu/million_en.html |
colosseums - definition of colosseums by the Free Online Dictionary, ... Definition of colosseums in the Online Dictionary. Meaning of colosseums. Pronunciation of colosseums. Translations of colosseums. colosseums synonyms, colosseums antonyms. Information about ... http://www.thefreedictionary.com/colosseums |
colosseum - definition of colosseum by the Free Online Dictionary, ... Definition of colosseum in the Online Dictionary. Meaning of colosseum. Pronunciation of colosseum. Translations of colosseum. colosseum synonyms, colosseum antonyms. Information about colosseum in ... http://www.thefreedictionary.com/Colosseum |
Amicable number - wik3 Divisibility-basedsets of integersForm of factorization:Prime numberComposite numberPowerful numberSquare-free numberAchilles numberConstrained divisor sums:Per... http://www.wik3.zalownia.com/Amicable_numbers.html |
Perfect number - riki taki Numbers where the sum is less than the number itself are called deficient, and where it is greater than the number, abundant. http://www.wik6.zalownia.com/Perfect_number.html |
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