Numbers / 46

The Number 46

46 is composite: factorization 2 × 23. That gives 46 exactly 4 divisors: 1, 2, 23, 46. 46's proper divisors total just 26, 20 short of 46, the deficient case most of 46's neighbors share too. 46 has a digit sum of 10; for 46, the digital root works out to 1. 46: 2 all divide 46 evenly, out of 2-12. 46 is 101110 in binary and 2E in hex; as a Roman numeral it's XLVI.