Compare 139 vs 409
| Property | 139 | 409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1391 | 4091 |
| Prime factorization | 139 | 409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 139 | 1, 409 |
| Number of properties | 6 | 9 |
| Additive primes | 19th | 47th |
| Centered triangular primes | 5th | |
| Chen primes | 28th | 57th |
| Happy primes | 10th | 22nd |
| Harmonic primes | 11th | |
| Isolated primes | 39th | |
| Lucky primes | 22nd | |
| Primes | 34th | 80th |
| Pythagorean primes | 39th | |
| Twin primes (2nd member) | 11th | |
| Ulam primes | 11th | |
| Roman numberals | CXXXIX | CDIX |
| Base 2 | 100010112 | 1100110012 |
| Base 3 | 120113 | 1200113 |
| Base 4 | 20234 | 121214 |
| Base 5 | 10245 | 31145 |
| Base 6 | 3516 | 15216 |
| Base 7 | 2567 | 11237 |
| Base 8 | 2138 | 6318 |
| Base 9 | 1649 | 5049 |
| Base 10 | 13910 | 40910 |
| Base 11 | 11711 | 34211 |
| Base 12 | b712 | 2a112 |
| Base 13 | a913 | 25613 |
| Base 14 | 9d14 | 21314 |
| Base 15 | 9415 | 1c415 |
| Base 16 | 8b16 | 19916 |