Numbers / 353

The Number 353

353 is prime: only 1 and 353 divide it evenly; the next prime after 353 is 359. 353's proper divisors total just 1, 352 short of 353, the deficient case most of 353's neighbors share too. 353 is also a palindrome, since 353 reads identically forwards and backwards. 353 has a digit sum of 11; for 353, the digital root works out to 2. 353 shares no factor with 2-12; 353's own divisors start beyond that range. 353 is 101100001 in binary and 161 in hex; as a Roman numeral it's CCCLIII.