Numbers / 943

The Number 943

943 is composite: factorization 23 × 41. That gives 943 exactly 4 divisors: 1, 23, 41, 943. 943's proper divisors total just 65, 878 short of 943, the deficient case most of 943's neighbors share too. 943 has a digit sum of 16; for 943, the digital root works out to 7. 943 shares no factor with 2-12; 943's own divisors start beyond that range. 943 is 1110101111 in binary and 3AF in hex; as a Roman numeral it's CMXLIII.