18 is abundant
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No 16 is deficient.12 and 18 are abundant.
No 18 is not. It is a abundant number.
Well, honey, 36 is what we call an "abundant" number. It's not perfect like a fairy tale ending, but it sure ain't deficient either. It's got more divisors than your average number, making it a bit of an overachiever in the math world.
A deficient number is a number for which the sum of its positive integer factors (other than itself) is less than itself. The sum of the factors of 18 is 1 + 2 + 3 + 6 + 9 = 21. Since 21 is greater than 18, 18 is an abundant number.
An Abundant Number is one that the factors (other than itself) add up to more than the number. 18 factors into [2 3 3] so the factor list is {1 2 3 6 9 18} and the sum of the rest is 21. Since 21 is greater than 18, it is an abundant number.Yes 18 is an abundant number because if you add all of it's factors (1,2,3,6,9,) together the sum is 21.Definition of Abundant- a number that is less the sum of it's factors or integers