Is 69 a deficient number and what is its deficiency?

Is 69 a deficient number?

Here we will explain and calculate if 69 is a deficient number and its deficiency if applicable.

69 is a deficient number if the sum of its proper divisors is less than 69.

The sum of its proper divisors is calculated as follows: 1 + 3 + 23 = 27.

27 is less than 69. Therefore, 69 is a deficient number.

The deficiency of 69 is 69 minus the sum of its proper divisors. Thus, the deficiency of 69 is 69 - 27 = 42

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