Numbers / 580

The Number 580

580 is composite: factorization 2^2 × 5 × 29. That gives 580 exactly 12 divisors: 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580. 580's proper divisors total 680, 100 more than 580 itself, so 580 is abundant. 580 has a digit sum of 13; for 580, the digital root works out to 4. 580: 2, 4, 5, 10 all divide 580 evenly, out of 2-12. 580 is 1001000100 in binary and 244 in hex; as a Roman numeral it's DLXXX.