Compare 145721 vs 147949
| Property | 145721 | 147949 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1457211 | 1479491 |
| Prime factorization | 145721 | 147949 |
| Divisors count | 2 | 2 |
| Divisors | 1, 145721 | 1, 147949 |
| Number of properties | 8 | 6 |
| Chen primes | 5795th | |
| Emirps | 2847th | |
| Harmonic primes | 5062nd | |
| Isolated primes | 10325th | |
| Long primes | 5103rd | |
| Lucky primes | 1780th | |
| Primes | 13484th | 13672nd |
| Pythagorean primes | 6721st | 6818th |
| Sophie germain primes | 1600th | |
| Twin primes (1st member) | 1656th | |
| Ulam primes | 957th | 969th |
| Roman numberals | ||
| Base 2 | 1000111001001110012 | 1001000001111011012 |
| Base 3 | 211012200023 | 211112211213 |
| Base 4 | 2032103214 | 2100132314 |
| Base 5 | 141303415 | 142132445 |
| Base 6 | 30423456 | 31005416 |
| Base 7 | 11445627 | 11542247 |
| Base 8 | 4344718 | 4407558 |
| Base 9 | 2418029 | 2448479 |
| Base 10 | 14572110 | 14794910 |
| Base 11 | 9a53411 | a117a11 |
| Base 12 | 703b512 | 7175112 |
| Base 13 | 5143413 | 5245913 |
| Base 14 | 3b16914 | 3bcbb14 |
| Base 15 | 2d29b15 | 2dc8415 |
| Base 16 | 2393916 | 241ed16 |