Is 684 a deficient number and what is its deficiency?

Is 684 a deficient number?

Here we will explain and calculate if 684 is a deficient number and its deficiency if applicable.

684 is a deficient number if the sum of its proper divisors is less than 684.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 6 + 9 + 12 + 18 + 19 + 36 + 38 + 57 + 76 + 114 + 171 + 228 + 342 = 1136.

1136 is not less than 684. Therefore, 684 is not a deficient number.

The deficiency of 684 is 684 minus the sum of its proper divisors. Thus, the deficiency of 684 is 684 - 1136 = No Deficiency

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