Do you know its property ?-7

Probability Level 4

The number of non-negative integral solutions of the inequality x+y+z1729 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 17291729 is 1+7+2+9=191+7+2+9=19
2. RN I used for RamanujanNumberRamanujan Number (Just for fun)

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