Numbers / 136

The Number 136

136 is composite: factorization 2^3 × 17. That gives 136 exactly 8 divisors: 1, 2, 4, 8, 17, 34, 68, 136. 136's proper divisors total just 134, 2 short of 136, the deficient case most of 136's neighbors share too. 136 is also the 16th triangular number, the sum of 1 through 16. 136 has a digit sum of 10; for 136, the digital root works out to 1. 136: 2, 4, 8 all divide 136 evenly, out of 2-12. 136 is 10001000 in binary and 88 in hex; as a Roman numeral it's CXXXVI.