Numbers / 241

The Number 241

241 is prime: only 1 and 241 divide it evenly; the next prime after 241 is 251. 241's proper divisors total just 1, 240 short of 241, the deficient case most of 241's neighbors share too. 241 has a digit sum of 7; for 241, the digital root works out to 7. 241 shares no factor with 2-12; 241's own divisors start beyond that range. 241 is 11110001 in binary and F1 in hex; as a Roman numeral it's CCXLI.