Numbers / 807

The Number 807

807 is composite: factorization 3 × 269. That gives 807 exactly 4 divisors: 1, 3, 269, 807. 807's proper divisors total just 273, 534 short of 807, the deficient case most of 807's neighbors share too. 807 has a digit sum of 15; for 807, the digital root works out to 6. 807: 3 all divide 807 evenly, out of 2-12. 807 is 1100100111 in binary and 327 in hex; as a Roman numeral it's DCCCVII.