Numbers / 37

The Number 37

37 is prime: only 1 and 37 divide it evenly; the next prime after 37 is 41. 37's proper divisors total just 1, 36 short of 37, the deficient case most of 37's neighbors share too. 37 has a digit sum of 10; for 37, the digital root works out to 1. 37 shares no factor with 2-12; 37's own divisors start beyond that range. 37 is 100101 in binary and 25 in hex; as a Roman numeral it's XXXVII.