Is 209 a deficient number and what is its deficiency?

Is 209 a deficient number?

Here we will explain and calculate if 209 is a deficient number and its deficiency if applicable.

209 is a deficient number if the sum of its proper divisors is less than 209.

The sum of its proper divisors is calculated as follows: 1 + 11 + 19 = 31.

31 is less than 209. Therefore, 209 is a deficient number.

The deficiency of 209 is 209 minus the sum of its proper divisors. Thus, the deficiency of 209 is 209 - 31 = 178

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