Numbers / 860

The Number 860

860 is composite: factorization 2^2 × 5 × 43. That gives 860 exactly 12 divisors: 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860. 860's proper divisors total 988, 128 more than 860 itself, so 860 is abundant. 860 has a digit sum of 14; for 860, the digital root works out to 5. 860: 2, 4, 5, 10 all divide 860 evenly, out of 2-12. 860 is 1101011100 in binary and 35C in hex; as a Roman numeral it's DCCCLX.