Numbers / 699

The Number 699

699 is composite: factorization 3 × 233. That gives 699 exactly 4 divisors: 1, 3, 233, 699. 699's proper divisors total just 237, 462 short of 699, the deficient case most of 699's neighbors share too. 699 has a digit sum of 24; for 699, the digital root works out to 6. 699: 3 all divide 699 evenly, out of 2-12. 699 is 1010111011 in binary and 2BB in hex; as a Roman numeral it's DCXCIX.