=( 1+2+3+......239)/ 12

={( 1+239)*239/2}/ 12

=28600/ 12

=2390

Integers are: 1, 2, 3, 4, 5, 6, 7, 8, 9.

The sum of integers is: 1+2+...+9 = 45.

So the sum of the requirements of the topic is: 2390-45=2345.