Is 2025 a deficient number and what is its deficiency?

Is 2025 a deficient number?

Here we will explain and calculate if 2025 is a deficient number and its deficiency if applicable.

2025 is a deficient number if the sum of its proper divisors is less than 2025.

The sum of its proper divisors is calculated as follows: 1 + 3 + 5 + 9 + 15 + 25 + 27 + 45 + 75 + 81 + 135 + 225 + 405 + 675 = 1726.

1726 is less than 2025. Therefore, 2025 is a deficient number.

The deficiency of 2025 is 2025 minus the sum of its proper divisors. Thus, the deficiency of 2025 is 2025 - 1726 = 299

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