Compare 42945 vs 42947
| Property | 42945 | 42947 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 31 × 51 × 71 × 4091 | 671 × 6411 |
| Prime factorization | 3 × 5 × 7 × 409 | 67 × 641 |
| Divisors count | 16 | 4 |
| Divisors | 1, 3, 5, 7, 15, 21, 35, 105, 409, 1227, 2045, 2863, 6135, 8589, 14315, 42945 | 1, 67, 641, 42947 |
| Number of properties | 0 | 1 |
| Semiprimes | 10448th | |
| Roman numberals | ||
| Base 2 | 10100111110000012 | 10100111110000112 |
| Base 3 | 20112201203 | 20112201223 |
| Base 4 | 221330014 | 221330034 |
| Base 5 | 23332405 | 23332425 |
| Base 6 | 5304536 | 5304556 |
| Base 7 | 2361307 | 2361327 |
| Base 8 | 1237018 | 1237038 |
| Base 9 | 648169 | 648189 |
| Base 10 | 4294510 | 4294710 |
| Base 11 | 2a2a111 | 2a2a311 |
| Base 12 | 20a2912 | 20a2b12 |
| Base 13 | 1671613 | 1671813 |
| Base 14 | 1191714 | 1191914 |
| Base 15 | cad015 | cad215 |
| Base 16 | a7c116 | a7c316 |