Numbers / 672

The Number 672

672 is composite: factorization 2^5 × 3 × 7. That gives 672 exactly 24 divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672. 672's proper divisors total 1344, 672 more than 672 itself, so 672 is abundant. 672 has a digit sum of 15; for 672, the digital root works out to 6. 672: 2, 3, 4, 6, 7, 8, 12 all divide 672 evenly, out of 2-12. 672 is 1010100000 in binary and 2A0 in hex; as a Roman numeral it's DCLXXII.