Numbers / 383

The Number 383

383 is prime: only 1 and 383 divide it evenly; the next prime after 383 is 389. 383's proper divisors total just 1, 382 short of 383, the deficient case most of 383's neighbors share too. 383 is also a palindrome, since 383 reads identically forwards and backwards. 383 has a digit sum of 14; for 383, the digital root works out to 5. 383 shares no factor with 2-12; 383's own divisors start beyond that range. 383 is 101111111 in binary and 17F in hex; as a Roman numeral it's CCCLXXXIII.