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Earn +20 ptsQ: Is 20 an abundant deficient or perfect number?
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Is 20 an abundant number?
Yes 20 is an ABUNDANT number because 1+2+4+5+10=22 and that is more than 20. PS how to find and ABUNDANT number is to add up all its factors. :)
Is the number 20 a perfect square?
20 is a not perfect square.
Is there a perfect number between 20 and 30?
28 is a perfect number.
How is 20 a perfect number?
It isn't a perfect number.A perfect number is a number which is the sum of its proper divisors (including 1, but excluding itself).The divisors of 20 are 1, 2, 4, 5, 10.1 + 2 + 4 + 5 + 10 = 22 => 20 is not a perfect number.An example of a perfect number is 28:The divisors of 28 are 1, 2, 4, 7, 141 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
Is 20 a perfect square number?
No, it is not. 4x4=16; 5x5=25 20=4x5
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