Numbers / 741

The Number 741

741 is composite: factorization 3 × 13 × 19. That gives 741 exactly 8 divisors: 1, 3, 13, 19, 39, 57, 247, 741. 741's proper divisors total just 379, 362 short of 741, the deficient case most of 741's neighbors share too. 741 is also the 38th triangular number, the sum of 1 through 38. 741 has a digit sum of 12; for 741, the digital root works out to 3. 741: 3 all divide 741 evenly, out of 2-12. 741 is 1011100101 in binary and 2E5 in hex; as a Roman numeral it's DCCXLI.