Numbers / 682

The Number 682

682 is composite: factorization 2 × 11 × 31. That gives 682 exactly 8 divisors: 1, 2, 11, 22, 31, 62, 341, 682. 682's proper divisors total just 470, 212 short of 682, the deficient case most of 682's neighbors share too. 682 has a digit sum of 16; for 682, the digital root works out to 7. 682: 2, 11 all divide 682 evenly, out of 2-12. 682 is 1010101010 in binary and 2AA in hex; as a Roman numeral it's DCLXXXII.