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A perfect number equals the sum of its proper divisors.
A deficient number is greater than the sum of its proper divisors.
An abundant number is less than the sum of its proper divisors.
Proper divisors of a number do not include the number itself.
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Is 12 a perfect number?
No, 12 is not a perfect number. It is abundant.
Is 35 a abundant deficient or perfect number?
deficient
Is 28 a perfect abundant or deficient number?
it is perfect i believe the factors are 1,2,4,7,and 14
How is 28 the perfect number?
First of all, to know if a number is abundant, deficient, or perfect, you need to know all the factors of your given number. The factors of 28 are 1,2,4,7,14, and 28. Add your proper factors -or the factors except itself- and determine if the sum of the proper factors is below (deficient), above (abundant), or the exact same amount (perfect). In this case, if you add the proper factors, it equals exactly 28. Because it is exact, it is perfect! =)
Is 75 perfect abundant or deficient?
A perfect number is one with factors (apart from itself) that sum to give the original number. An abundant number is one where this sum is greater than the original number. A deficient number is one where the sum is less than the original number. The factors of 75 are 1, 3, 5, 15 and 25. The sum of these numbers is 49. Thus 75 is a deficient number.
Is 60 an abundant number or a perfect number?
60 is abundant.
Is the number 20 deficient perfect or abundant?
abundant
Is 100 a deficient or abundant or perfect number?
abundant
Is 12 a perfect number?
No, 12 is not a perfect number. It is abundant.
Is 8128 a abundant deficient or perfect number?
abundant since sum of divisors is 16256
Is 15 a abundant deficient or perfect number?
perfect
Is 26 a dificient number?
yes
Is 18 abundant or deficient or perfect number?
18 is abundant
Is the number 25 abundant deficient or perfect number?
It's deficient
Is 18 a perfect number?
No 18 is not. It is a abundant number.
Is 84 abundant or perfect number?
derefrf4f4144r4rr
Are all multiples of abundant numbers abundant?
Yes, this is well known. All integral multiples of any perfect, or abundant number must be an abundant number.
