Numbers / 806

The Number 806

806 is composite: factorization 2 × 13 × 31. That gives 806 exactly 8 divisors: 1, 2, 13, 26, 31, 62, 403, 806. 806's proper divisors total just 538, 268 short of 806, the deficient case most of 806's neighbors share too. 806 has a digit sum of 14; for 806, the digital root works out to 5. 806: 2 all divide 806 evenly, out of 2-12. 806 is 1100100110 in binary and 326 in hex; as a Roman numeral it's DCCCVI.