Is 290 a deficient number and what is its deficiency?

Is 290 a deficient number?

Here we will explain and calculate if 290 is a deficient number and its deficiency if applicable.

290 is a deficient number if the sum of its proper divisors is less than 290.

The sum of its proper divisors is calculated as follows: 1 + 2 + 5 + 10 + 29 + 58 + 145 = 250.

250 is less than 290. Therefore, 290 is a deficient number.

The deficiency of 290 is 290 minus the sum of its proper divisors. Thus, the deficiency of 290 is 290 - 250 = 40

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