Is 3213 a deficient number and what is its deficiency?

Is 3213 a deficient number?

Here we will explain and calculate if 3213 is a deficient number and its deficiency if applicable.

3213 is a deficient number if the sum of its proper divisors is less than 3213.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 9 + 17 + 21 + 27 + 51 + 63 + 119 + 153 + 189 + 357 + 459 + 1071 = 2547.

2547 is less than 3213. Therefore, 3213 is a deficient number.

The deficiency of 3213 is 3213 minus the sum of its proper divisors. Thus, the deficiency of 3213 is 3213 - 2547 = 666

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