Numbers / 480
The Number 480
480 is composite: factorization 2^5 × 3 × 5. That gives 480 exactly 24 divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480. 480's proper divisors total 1032, 552 more than 480 itself, so 480 is abundant. 480 has a digit sum of 12; for 480, the digital root works out to 3. 480: 2, 3, 4, 5, 6, 8, 10, 12 all divide 480 evenly, out of 2-12. 480 is 111100000 in binary and 1E0 in hex; as a Roman numeral it's CDLXXX.