Numbers / 963

The Number 963

963 is composite: factorization 3^2 × 107. That gives 963 exactly 6 divisors: 1, 3, 9, 107, 321, 963. 963's proper divisors total just 441, 522 short of 963, the deficient case most of 963's neighbors share too. 963 has a digit sum of 18; for 963, the digital root works out to 9. 963: 3, 9 all divide 963 evenly, out of 2-12. 963 is 1111000011 in binary and 3C3 in hex; as a Roman numeral it's CMLXIII.