Is 78 an abundant number and what is its abundance?

Is 78 an abundant number?

Here we will explain and calculate if 78 is an abundant number and its abundance if applicable.

78 is an abundant number if the sum of its proper divisors is greater than 78.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 6 + 13 + 26 + 39 = 90.

90 is greater than 78. Therefore, 78 is an abundant number.

The abundance of 78 is the sum of its proper divisors minus 78. Thus, the abundance of 78 is 90 - 78 = 12

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