Numbers / 380

The Number 380

380 is composite: factorization 2^2 × 5 × 19. That gives 380 exactly 12 divisors: 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380. 380's proper divisors total 460, 80 more than 380 itself, so 380 is abundant. 380 has a digit sum of 11; for 380, the digital root works out to 2. 380: 2, 4, 5, 10 all divide 380 evenly, out of 2-12. 380 is 101111100 in binary and 17C in hex; as a Roman numeral it's CCCLXXX.