Numbers / 701

The Number 701

701 is prime: only 1 and 701 divide it evenly; the next prime after 701 is 709. 701's proper divisors total just 1, 700 short of 701, the deficient case most of 701's neighbors share too. 701 has a digit sum of 8; for 701, the digital root works out to 8. 701 shares no factor with 2-12; 701's own divisors start beyond that range. 701 is 1010111101 in binary and 2BD in hex; as a Roman numeral it's DCCI.