Is 1155 an abundant number and what is its abundance?

Is 1155 an abundant number?

Here we will explain and calculate if 1155 is an abundant number and its abundance if applicable.

1155 is an abundant number if the sum of its proper divisors is greater than 1155.

The sum of its proper divisors is calculated as follows: 1 + 3 + 5 + 7 + 11 + 15 + 21 + 33 + 35 + 55 + 77 + 105 + 165 + 231 + 385 = 1149.

1149 is not greater than 1155. Therefore, 1155 is not an abundant number.

The abundance of 1155 is the sum of its proper divisors minus 1155. Thus, the abundance of 1155 is 1149 - 1155 = no abundance

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