Is 429 a deficient number and what is its deficiency?

Is 429 a deficient number?

Here we will explain and calculate if 429 is a deficient number and its deficiency if applicable.

429 is a deficient number if the sum of its proper divisors is less than 429.

The sum of its proper divisors is calculated as follows: 1 + 3 + 11 + 13 + 33 + 39 + 143 = 243.

243 is less than 429. Therefore, 429 is a deficient number.

The deficiency of 429 is 429 minus the sum of its proper divisors. Thus, the deficiency of 429 is 429 - 243 = 186

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