Is 2905 a deficient number and what is its deficiency?

Is 2905 a deficient number?

Here we will explain and calculate if 2905 is a deficient number and its deficiency if applicable.

2905 is a deficient number if the sum of its proper divisors is less than 2905.

The sum of its proper divisors is calculated as follows: 1 + 5 + 7 + 35 + 83 + 415 + 581 = 1127.

1127 is less than 2905. Therefore, 2905 is a deficient number.

The deficiency of 2905 is 2905 minus the sum of its proper divisors. Thus, the deficiency of 2905 is 2905 - 1127 = 1778

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