Numbers / 564

The Number 564

564 is composite: factorization 2^2 × 3 × 47. That gives 564 exactly 12 divisors: 1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 282, 564. 564's proper divisors total 780, 216 more than 564 itself, so 564 is abundant. 564 has a digit sum of 15; for 564, the digital root works out to 6. 564: 2, 3, 4, 6, 12 all divide 564 evenly, out of 2-12. 564 is 1000110100 in binary and 234 in hex; as a Roman numeral it's DLXIV.