Numbers / 339
The Number 339
339 is composite: factorization 3 × 113. That gives 339 exactly 4 divisors: 1, 3, 113, 339. 339's proper divisors total just 117, 222 short of 339, the deficient case most of 339's neighbors share too. 339 has a digit sum of 15; for 339, the digital root works out to 6. 339: 3 all divide 339 evenly, out of 2-12. 339 is 101010011 in binary and 153 in hex; as a Roman numeral it's CCCXXXIX.