Numbers / 375

The Number 375

375 is composite: factorization 3 × 5^3. That gives 375 exactly 8 divisors: 1, 3, 5, 15, 25, 75, 125, 375. 375's proper divisors total just 249, 126 short of 375, the deficient case most of 375's neighbors share too. 375 has a digit sum of 15; for 375, the digital root works out to 6. 375: 3, 5 all divide 375 evenly, out of 2-12. 375 is 101110111 in binary and 177 in hex; as a Roman numeral it's CCCLXXV.