Is 278 a deficient number and what is its deficiency?

Is 278 a deficient number?

Here we will explain and calculate if 278 is a deficient number and its deficiency if applicable.

278 is a deficient number if the sum of its proper divisors is less than 278.

The sum of its proper divisors is calculated as follows: 1 + 2 + 139 = 142.

142 is less than 278. Therefore, 278 is a deficient number.

The deficiency of 278 is 278 minus the sum of its proper divisors. Thus, the deficiency of 278 is 278 - 142 = 136

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