Compare 72151 vs 72161
| Property | 72151 | 72161 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 31371 | 721611 |
| Prime factorization | 23 × 3137 | 72161 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 3137, 72151 | 1, 72161 |
| Number of properties | 1 | 10 |
| Additive primes | 3020th | |
| Emirps | 1052nd | |
| Happy primes | 1108th | |
| Harmonic primes | 2699th | |
| Isolated primes | 5277th | |
| Primes | 7142nd | |
| Pythagorean primes | 3556th | |
| Semiprimes | 17156th | |
| Sexy primes (1st member) | 1875th | |
| Sexy prime triplets (1st member) | 422nd | |
| Sophie germain primes | 898th | |
| Roman numberals | ||
| Base 2 | 100011001110101112 | 100011001111000012 |
| Base 3 | 101222220213 | 101222221223 |
| Base 4 | 1012131134 | 1012132014 |
| Base 5 | 43021015 | 43021215 |
| Base 6 | 13140116 | 13140256 |
| Base 7 | 4202327 | 4202457 |
| Base 8 | 2147278 | 2147418 |
| Base 9 | 1188679 | 1188789 |
| Base 10 | 7215110 | 7216110 |
| Base 11 | 4a23211 | 4a24111 |
| Base 12 | 3590712 | 3591512 |
| Base 13 | 26ac113 | 26acb13 |
| Base 14 | 1c41914 | 1c42514 |
| Base 15 | 165a115 | 165ab15 |
| Base 16 | 119d716 | 119e116 |