Is 459 a deficient number and what is its deficiency?

Is 459 a deficient number?

Here we will explain and calculate if 459 is a deficient number and its deficiency if applicable.

459 is a deficient number if the sum of its proper divisors is less than 459.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 17 + 27 + 51 + 153 = 261.

261 is less than 459. Therefore, 459 is a deficient number.

The deficiency of 459 is 459 minus the sum of its proper divisors. Thus, the deficiency of 459 is 459 - 261 = 198

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