Numbers / 773

The Number 773

773 is prime: only 1 and 773 divide it evenly; the next prime after 773 is 787. 773's proper divisors total just 1, 772 short of 773, the deficient case most of 773's neighbors share too. 773 has a digit sum of 17; for 773, the digital root works out to 8. 773 shares no factor with 2-12; 773's own divisors start beyond that range. 773 is 1100000101 in binary and 305 in hex; as a Roman numeral it's DCCLXXIII.