Numbers / 185

The Number 185

185 is composite: factorization 5 × 37. That gives 185 exactly 4 divisors: 1, 5, 37, 185. 185's proper divisors total just 43, 142 short of 185, the deficient case most of 185's neighbors share too. 185 has a digit sum of 14; for 185, the digital root works out to 5. 185: 5 all divide 185 evenly, out of 2-12. 185 is 10111001 in binary and B9 in hex; as a Roman numeral it's CLXXXV.