Numbers / 426

The Number 426

426 is composite: factorization 2 × 3 × 71. That gives 426 exactly 8 divisors: 1, 2, 3, 6, 71, 142, 213, 426. 426's proper divisors total 438, 12 more than 426 itself, so 426 is abundant. 426 has a digit sum of 12; for 426, the digital root works out to 3. 426: 2, 3, 6 all divide 426 evenly, out of 2-12. 426 is 110101010 in binary and 1AA in hex; as a Roman numeral it's CDXXVI.