Is 778 a deficient number and what is its deficiency?

Is 778 a deficient number?

Here we will explain and calculate if 778 is a deficient number and its deficiency if applicable.

778 is a deficient number if the sum of its proper divisors is less than 778.

The sum of its proper divisors is calculated as follows: 1 + 2 + 389 = 392.

392 is less than 778. Therefore, 778 is a deficient number.

The deficiency of 778 is 778 minus the sum of its proper divisors. Thus, the deficiency of 778 is 778 - 392 = 386

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