Numbers / 764

The Number 764

764 is composite: factorization 2^2 × 191. That gives 764 exactly 6 divisors: 1, 2, 4, 191, 382, 764. 764's proper divisors total just 580, 184 short of 764, the deficient case most of 764's neighbors share too. 764 has a digit sum of 17; for 764, the digital root works out to 8. 764: 2, 4 all divide 764 evenly, out of 2-12. 764 is 1011111100 in binary and 2FC in hex; as a Roman numeral it's DCCLXIV.