Numbers / 434

The Number 434

434 is composite: factorization 2 × 7 × 31. That gives 434 exactly 8 divisors: 1, 2, 7, 14, 31, 62, 217, 434. 434's proper divisors total just 334, 100 short of 434, the deficient case most of 434's neighbors share too. 434 is also a palindrome, since 434 reads identically forwards and backwards. 434 has a digit sum of 11; for 434, the digital root works out to 2. 434: 2, 7 all divide 434 evenly, out of 2-12. 434 is 110110010 in binary and 1B2 in hex; as a Roman numeral it's CDXXXIV.