Numbers / 50

The Number 50

50 is composite: factorization 2 × 5^2. That gives 50 exactly 6 divisors: 1, 2, 5, 10, 25, 50. 50's proper divisors total just 43, 7 short of 50, the deficient case most of 50's neighbors share too. 50 has a digit sum of 5; for 50, the digital root works out to 5. 50: 2, 5, 10 all divide 50 evenly, out of 2-12. 50 is 110010 in binary and 32 in hex; as a Roman numeral it's L.