Is 398 a deficient number and what is its deficiency?

Is 398 a deficient number?

Here we will explain and calculate if 398 is a deficient number and its deficiency if applicable.

398 is a deficient number if the sum of its proper divisors is less than 398.

The sum of its proper divisors is calculated as follows: 1 + 2 + 199 = 202.

202 is less than 398. Therefore, 398 is a deficient number.

The deficiency of 398 is 398 minus the sum of its proper divisors. Thus, the deficiency of 398 is 398 - 202 = 196

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