Numbers / 830

The Number 830

830 is composite: factorization 2 × 5 × 83. That gives 830 exactly 8 divisors: 1, 2, 5, 10, 83, 166, 415, 830. 830's proper divisors total just 682, 148 short of 830, the deficient case most of 830's neighbors share too. 830 has a digit sum of 11; for 830, the digital root works out to 2. 830: 2, 5, 10 all divide 830 evenly, out of 2-12. 830 is 1100111110 in binary and 33E in hex; as a Roman numeral it's DCCCXXX.