Numbers / 712

The Number 712

712 is composite: factorization 2^3 × 89. That gives 712 exactly 8 divisors: 1, 2, 4, 8, 89, 178, 356, 712. 712's proper divisors total just 638, 74 short of 712, the deficient case most of 712's neighbors share too. 712 has a digit sum of 10; for 712, the digital root works out to 1. 712: 2, 4, 8 all divide 712 evenly, out of 2-12. 712 is 1011001000 in binary and 2C8 in hex; as a Roman numeral it's DCCXII.