Numbers / 435

The Number 435

435 is composite: factorization 3 × 5 × 29. That gives 435 exactly 8 divisors: 1, 3, 5, 15, 29, 87, 145, 435. 435's proper divisors total just 285, 150 short of 435, the deficient case most of 435's neighbors share too. 435 is also the 29th triangular number, the sum of 1 through 29. 435 has a digit sum of 12; for 435, the digital root works out to 3. 435: 3, 5 all divide 435 evenly, out of 2-12. 435 is 110110011 in binary and 1B3 in hex; as a Roman numeral it's CDXXXV.