Numbers / 477

The Number 477

477 is composite: factorization 3^2 × 53. That gives 477 exactly 6 divisors: 1, 3, 9, 53, 159, 477. 477's proper divisors total just 225, 252 short of 477, the deficient case most of 477's neighbors share too. 477 has a digit sum of 18; for 477, the digital root works out to 9. 477: 3, 9 all divide 477 evenly, out of 2-12. 477 is 111011101 in binary and 1DD in hex; as a Roman numeral it's CDLXXVII.