Is 225 a deficient number and what is its deficiency?

Is 225 a deficient number?

Here we will explain and calculate if 225 is a deficient number and its deficiency if applicable.

225 is a deficient number if the sum of its proper divisors is less than 225.

The sum of its proper divisors is calculated as follows: 1 + 3 + 5 + 9 + 15 + 25 + 45 + 75 = 178.

178 is less than 225. Therefore, 225 is a deficient number.

The deficiency of 225 is 225 minus the sum of its proper divisors. Thus, the deficiency of 225 is 225 - 178 = 47

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