Compare 87139 vs 87151
| Property | 87139 | 87151 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 131 × 67031 | 871511 |
| Prime factorization | 13 × 6703 | 87151 |
| Divisors count | 4 | 2 |
| Divisors | 1, 13, 6703, 87139 | 1, 87151 |
| Number of properties | 1 | 3 |
| Lucky primes | 1139th | |
| Primes | 8464th | |
| Semiprimes | 20524th | |
| Twin primes (2nd member) | 1087th | |
| Roman numberals | ||
| Base 2 | 101010100011000112 | 101010100011011112 |
| Base 3 | 111021121013 | 111021122113 |
| Base 4 | 1111012034 | 1111012334 |
| Base 5 | 102420245 | 102421015 |
| Base 6 | 15112316 | 15112516 |
| Base 7 | 5120237 | 5120417 |
| Base 8 | 2521438 | 2521578 |
| Base 9 | 1424719 | 1424849 |
| Base 10 | 8713910 | 8715110 |
| Base 11 | 5a51811 | 5a52911 |
| Base 12 | 4251712 | 4252712 |
| Base 13 | 3088013 | 3088c13 |
| Base 14 | 23a8314 | 23a9114 |
| Base 15 | 1ac4415 | 1ac5115 |
| Base 16 | 1546316 | 1546f16 |