Is 783 a deficient number and what is its deficiency?

Is 783 a deficient number?

Here we will explain and calculate if 783 is a deficient number and its deficiency if applicable.

783 is a deficient number if the sum of its proper divisors is less than 783.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 27 + 29 + 87 + 261 = 417.

417 is less than 783. Therefore, 783 is a deficient number.

The deficiency of 783 is 783 minus the sum of its proper divisors. Thus, the deficiency of 783 is 783 - 417 = 366

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