Numbers / 371

The Number 371

371 is composite: factorization 7 × 53. That gives 371 exactly 4 divisors: 1, 7, 53, 371. 371's proper divisors total just 61, 310 short of 371, the deficient case most of 371's neighbors share too. 371 has a digit sum of 11; for 371, the digital root works out to 2. 371: 7 all divide 371 evenly, out of 2-12. 371 is 101110011 in binary and 173 in hex; as a Roman numeral it's CCCLXXI.