Numbers / 177
The Number 177
177 is composite: factorization 3 × 59. That gives 177 exactly 4 divisors: 1, 3, 59, 177. 177's proper divisors total just 63, 114 short of 177, the deficient case most of 177's neighbors share too. 177 has a digit sum of 15; for 177, the digital root works out to 6. 177: 3 all divide 177 evenly, out of 2-12. 177 is 10110001 in binary and B1 in hex; as a Roman numeral it's CLXXVII.