Numbers / 612

The Number 612

612 is composite: factorization 2^2 × 3^2 × 17. That gives 612 exactly 18 divisors: 1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612. 612's proper divisors total 1026, 414 more than 612 itself, so 612 is abundant. 612 has a digit sum of 9; for 612, the digital root works out to 9. 612: 2, 3, 4, 6, 9, 12 all divide 612 evenly, out of 2-12. 612 is 1001100100 in binary and 264 in hex; as a Roman numeral it's DCXII.