Numbers / 824

The Number 824

824 is composite: factorization 2^3 × 103. That gives 824 exactly 8 divisors: 1, 2, 4, 8, 103, 206, 412, 824. 824's proper divisors total just 736, 88 short of 824, the deficient case most of 824's neighbors share too. 824 has a digit sum of 14; for 824, the digital root works out to 5. 824: 2, 4, 8 all divide 824 evenly, out of 2-12. 824 is 1100111000 in binary and 338 in hex; as a Roman numeral it's DCCCXXIV.