Compare 644 vs 645
Property | 644 | 645 |
---|---|---|
Type | composite number | composite number |
Unique factors | 3 | 3 |
Total factors | 4 | 3 |
Prime factorization | 22 × 71 × 231 | 31 × 51 × 431 |
Prime factorization | 2 × 2 × 7 × 23 | 3 × 5 × 43 |
Divisors count | 12 | 8 |
Divisors | 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644 | 1, 3, 5, 15, 43, 129, 215, 645 |
Number of properties | 0 | 0 |
Roman numberals | DCXLIV | DCXLV |
Base 2 | 10100001002 | 10100001012 |
Base 3 | 2122123 | 2122203 |
Base 4 | 220104 | 220114 |
Base 5 | 100345 | 100405 |
Base 6 | 25526 | 25536 |
Base 7 | 16107 | 16117 |
Base 8 | 12048 | 12058 |
Base 9 | 7859 | 7869 |
Base 10 | 64410 | 64510 |
Base 11 | 53611 | 53711 |
Base 12 | 45812 | 45912 |
Base 13 | 3a713 | 3a813 |
Base 14 | 34014 | 34114 |
Base 15 | 2ce15 | 2d015 |
Base 16 | 28416 | 28516 |