Numbers / 923

The Number 923

923 is composite: factorization 13 × 71. That gives 923 exactly 4 divisors: 1, 13, 71, 923. 923's proper divisors total just 85, 838 short of 923, the deficient case most of 923's neighbors share too. 923 has a digit sum of 14; for 923, the digital root works out to 5. 923 shares no factor with 2-12; 923's own divisors start beyond that range. 923 is 1110011011 in binary and 39B in hex; as a Roman numeral it's CMXXIII.