Numbers / 93

The Number 93

93 is composite: factorization 3 × 31. That gives 93 exactly 4 divisors: 1, 3, 31, 93. 93's proper divisors total just 35, 58 short of 93, the deficient case most of 93's neighbors share too. 93 has a digit sum of 12; for 93, the digital root works out to 3. 93: 3 all divide 93 evenly, out of 2-12. 93 is 1011101 in binary and 5D in hex; as a Roman numeral it's XCIII.