Compare 129 vs 139
| Property | 129 | 139 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 431 | 1391 |
| Prime factorization | 3 × 43 | 139 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 43, 129 | 1, 139 |
| Number of properties | 1 | 6 |
| Additive primes | 19th | |
| Chen primes | 28th | |
| Happy primes | 10th | |
| Harmonic primes | 11th | |
| Primes | 34th | |
| Semiprimes | 43rd | |
| Twin primes (2nd member) | 11th | |
| Roman numberals | CXXIX | CXXXIX |
| Base 2 | 100000012 | 100010112 |
| Base 3 | 112103 | 120113 |
| Base 4 | 20014 | 20234 |
| Base 5 | 10045 | 10245 |
| Base 6 | 3336 | 3516 |
| Base 7 | 2437 | 2567 |
| Base 8 | 2018 | 2138 |
| Base 9 | 1539 | 1649 |
| Base 10 | 12910 | 13910 |
| Base 11 | 10811 | 11711 |
| Base 12 | a912 | b712 |
| Base 13 | 9c13 | a913 |
| Base 14 | 9314 | 9d14 |
| Base 15 | 8915 | 9415 |
| Base 16 | 8116 | 8b16 |