Is 1239 a deficient number and what is its deficiency?

Is 1239 a deficient number?

Here we will explain and calculate if 1239 is a deficient number and its deficiency if applicable.

1239 is a deficient number if the sum of its proper divisors is less than 1239.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 59 + 177 + 413 = 681.

681 is less than 1239. Therefore, 1239 is a deficient number.

The deficiency of 1239 is 1239 minus the sum of its proper divisors. Thus, the deficiency of 1239 is 1239 - 681 = 558

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