Numbers / 410

The Number 410

410 is composite: factorization 2 × 5 × 41. That gives 410 exactly 8 divisors: 1, 2, 5, 10, 41, 82, 205, 410. 410's proper divisors total just 346, 64 short of 410, the deficient case most of 410's neighbors share too. 410 has a digit sum of 5; for 410, the digital root works out to 5. 410: 2, 5, 10 all divide 410 evenly, out of 2-12. 410 is 110011010 in binary and 19A in hex; as a Roman numeral it's CDX.