Numbers / 323

The Number 323

323 is composite: factorization 17 × 19. That gives 323 exactly 4 divisors: 1, 17, 19, 323. 323's proper divisors total just 37, 286 short of 323, the deficient case most of 323's neighbors share too. 323 is also a palindrome, since 323 reads identically forwards and backwards. 323 has a digit sum of 8; for 323, the digital root works out to 8. 323 shares no factor with 2-12; 323's own divisors start beyond that range. 323 is 101000011 in binary and 143 in hex; as a Roman numeral it's CCCXXIII.