Compare 172145 vs 172157
| Property | 172145 | 172157 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 344291 | 1721571 |
| Prime factorization | 5 × 34429 | 172157 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 34429, 172145 | 1, 172157 |
| Number of properties | 1 | 7 |
| Additive primes | 6414th | |
| Cousin primes (2nd member) | 1885th | |
| Happy primes | 2427th | |
| Isolated primes | 11886th | |
| Primes | 15679th | |
| Pythagorean primes | 7819th | |
| Semiprimes | 39245th | |
| Super primes | 1830th | |
| Roman numberals | ||
| Base 2 | 1010100000011100012 | 1010100000011111012 |
| Base 3 | 222020102023 | 222020110123 |
| Base 4 | 2220013014 | 2220013314 |
| Base 5 | 210020405 | 210021125 |
| Base 6 | 34045456 | 34050056 |
| Base 7 | 13146117 | 13146267 |
| Base 8 | 5201618 | 5201758 |
| Base 9 | 2821229 | 2821359 |
| Base 10 | 17214510 | 17215710 |
| Base 11 | 10837611 | 10838711 |
| Base 12 | 8375512 | 8376512 |
| Base 13 | 6047c13 | 6048b13 |
| Base 14 | 46a4114 | 46a4d14 |
| Base 15 | 3601515 | 3602215 |
| Base 16 | 2a07116 | 2a07d16 |