What is the next number of the following sequence - 79, 159, 279, 519, ??

Question

What is the next number in the sequence -
1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, 103, 109, 129, 130, ?

Answer 1

79 => 79+ (7+1)*(9+1) = 79+ 8*10 = 79+80 = 159
159 => 159+ (1+1)*(5+1)*(9+1) = 159+ 120 = 279
279 => 279+ (2+1)*(7+1)*(9+1) = 279+ 240 = 519
Similarly
519 => 519+ (5+1)*(1+1)*(9+1) = 519+ 120 = 639