Numbers / 333

The Number 333

333 is composite: factorization 3^2 × 37. That gives 333 exactly 6 divisors: 1, 3, 9, 37, 111, 333. 333's proper divisors total just 161, 172 short of 333, the deficient case most of 333's neighbors share too. 333 is also a palindrome, since 333 reads identically forwards and backwards. 333 has a digit sum of 9; for 333, the digital root works out to 9. 333: 3, 9 all divide 333 evenly, out of 2-12. 333 is 101001101 in binary and 14D in hex; as a Roman numeral it's CCCXXXIII.