Is 4290 a deficient number and what is its deficiency?

Is 4290 a deficient number?

Here we will explain and calculate if 4290 is a deficient number and its deficiency if applicable.

4290 is a deficient number if the sum of its proper divisors is less than 4290.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 5 + 6 + 10 + 11 + 13 + 15 + 22 + 26 + 30 + 33 + 39 + 55 + 65 + 66 + 78 + 110 + 130 + 143 + 165 + 195 + 286 + 330 + 390 + 429 + 715 + 858 + 1430 + 2145 = 7806.

7806 is not less than 4290. Therefore, 4290 is not a deficient number.

The deficiency of 4290 is 4290 minus the sum of its proper divisors. Thus, the deficiency of 4290 is 4290 - 7806 = No Deficiency

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