Numbers / 299

The Number 299

299 is composite: factorization 13 × 23. That gives 299 exactly 4 divisors: 1, 13, 23, 299. 299's proper divisors total just 37, 262 short of 299, the deficient case most of 299's neighbors share too. 299 has a digit sum of 20; for 299, the digital root works out to 2. 299 shares no factor with 2-12; 299's own divisors start beyond that range. 299 is 100101011 in binary and 12B in hex; as a Roman numeral it's CCXCIX.