Do you know its property ?-7

Discrete Mathematics Level 3

The number of non-negative integral solutions of the inequality \( x+y+z \leq 1729\) is RN.

Find the digit sum of RN.

Details and Assumptions ;
1. Digit sum refers to the sum of the digits. For instance, digit sum of \(1729\) is \(1+7+2+9=19\)
2. RN I used for \(Ramanujan Number\) (Just for fun)

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