Numbers / 526

The Number 526

526 is composite: factorization 2 × 263. That gives 526 exactly 4 divisors: 1, 2, 263, 526. 526's proper divisors total just 266, 260 short of 526, the deficient case most of 526's neighbors share too. 526 has a digit sum of 13; for 526, the digital root works out to 4. 526: 2 all divide 526 evenly, out of 2-12. 526 is 1000001110 in binary and 20E in hex; as a Roman numeral it's DXXVI.