Compare 139 vs 146
| Property | 139 | 146 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1391 | 21 × 731 |
| Prime factorization | 139 | 2 × 73 |
| Divisors count | 2 | 4 |
| Divisors | 1, 139 | 1, 2, 73, 146 |
| Number of properties | 6 | 1 |
| Additive primes | 19th | |
| Chen primes | 28th | |
| Happy primes | 10th | |
| Harmonic primes | 11th | |
| Primes | 34th | |
| Semiprimes | 50th | |
| Twin primes (2nd member) | 11th | |
| Roman numberals | CXXXIX | CXLVI |
| Base 2 | 100010112 | 100100102 |
| Base 3 | 120113 | 121023 |
| Base 4 | 20234 | 21024 |
| Base 5 | 10245 | 10415 |
| Base 6 | 3516 | 4026 |
| Base 7 | 2567 | 2667 |
| Base 8 | 2138 | 2228 |
| Base 9 | 1649 | 1729 |
| Base 10 | 13910 | 14610 |
| Base 11 | 11711 | 12311 |
| Base 12 | b712 | 10212 |
| Base 13 | a913 | b313 |
| Base 14 | 9d14 | a614 |
| Base 15 | 9415 | 9b15 |
| Base 16 | 8b16 | 9216 |