Numbers / 953

The Number 953

953 is prime: only 1 and 953 divide it evenly; the next prime after 953 is 967. 953's proper divisors total just 1, 952 short of 953, the deficient case most of 953's neighbors share too. 953 has a digit sum of 17; for 953, the digital root works out to 8. 953 shares no factor with 2-12; 953's own divisors start beyond that range. 953 is 1110111001 in binary and 3B9 in hex; as a Roman numeral it's CMLIII.