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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, 14
1 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
What else can I help you with?
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.
What numbers are almost perfect from 5 and 20?
Almost perfect numbers are those that are one less than a perfect number. The perfect numbers between 5 and 20 are 6 and 28, with 6 being the only perfect number in this range. Therefore, the almost perfect number in this interval is 5, as it is one less than 6.
Is 20 an abundant deficient or perfect number?
Abundent
Is 20 a perfect square number?
No, it is not. 4x4=16; 5x5=25 20=4x5
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.
Is the number a perfect square?
20 is a not perfect square.
Is 20 a perfect number?
No it is not. The closest perfect number to it is 28. The divisors of 20 are 1,2,4,5,10 those add up to more than 20 so 20 is an abundant number.
How many perfect numbers are in between 20 and 50?
The only perfect number between 20 and 50 is 28.
How do you find the perfect number between 20 and 30?
The number is 28.
What numbers are almost perfect from 5 and 20?
Almost perfect numbers are those that are one less than a perfect number. The perfect numbers between 5 and 20 are 6 and 28, with 6 being the only perfect number in this range. Therefore, the almost perfect number in this interval is 5, as it is one less than 6.
Is 20 an abundant deficient or perfect number?
Abundent
Is the number 20 deficient perfect or abundant?
abundant
Is 20 a perfect square number?
No, it is not. 4x4=16; 5x5=25 20=4x5
What is the perfect number between 20 and 30?
The perfect number between 20 and 30 is 28. A perfect number is defined as a positive integer that is equal to the sum of its proper divisors, excluding itself. For 28, the divisors are 1, 2, 4, 7, and 14, which add up to 28. Thus, 28 is the only perfect number in that range.
Is 20 a perfect number in math?
No. In the first hundred numbers, there are only two perfect numbers: 6, and 28.
