Numbers / 802

The Number 802

802 is composite: factorization 2 × 401. That gives 802 exactly 4 divisors: 1, 2, 401, 802. 802's proper divisors total just 404, 398 short of 802, the deficient case most of 802's neighbors share too. 802 has a digit sum of 10; for 802, the digital root works out to 1. 802: 2 all divide 802 evenly, out of 2-12. 802 is 1100100010 in binary and 322 in hex; as a Roman numeral it's DCCCII.