# Do you know its property ?-7

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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