Numbers / 662

The Number 662

662 is composite: factorization 2 × 331. That gives 662 exactly 4 divisors: 1, 2, 331, 662. 662's proper divisors total just 334, 328 short of 662, the deficient case most of 662's neighbors share too. 662 has a digit sum of 14; for 662, the digital root works out to 5. 662: 2 all divide 662 evenly, out of 2-12. 662 is 1010010110 in binary and 296 in hex; as a Roman numeral it's DCLXII.