Is 147 a deficient number and what is its deficiency?

Is 147 a deficient number?

Here we will explain and calculate if 147 is a deficient number and its deficiency if applicable.

147 is a deficient number if the sum of its proper divisors is less than 147.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 49 = 81.

81 is less than 147. Therefore, 147 is a deficient number.

The deficiency of 147 is 147 minus the sum of its proper divisors. Thus, the deficiency of 147 is 147 - 81 = 66

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