Numbers / 844

The Number 844

844 is composite: factorization 2^2 × 211. That gives 844 exactly 6 divisors: 1, 2, 4, 211, 422, 844. 844's proper divisors total just 640, 204 short of 844, the deficient case most of 844's neighbors share too. 844 has a digit sum of 16; for 844, the digital root works out to 7. 844: 2, 4 all divide 844 evenly, out of 2-12. 844 is 1101001100 in binary and 34C in hex; as a Roman numeral it's DCCCXLIV.