Numbers / 356

The Number 356

356 is composite: factorization 2^2 × 89. That gives 356 exactly 6 divisors: 1, 2, 4, 89, 178, 356. 356's proper divisors total just 274, 82 short of 356, the deficient case most of 356's neighbors share too. 356 has a digit sum of 14; for 356, the digital root works out to 5. 356: 2, 4 all divide 356 evenly, out of 2-12. 356 is 101100100 in binary and 164 in hex; as a Roman numeral it's CCCLVI.