Compare 128879 vs 129401
| Property | 128879 | 129401 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1288791 | 1294011 |
| Prime factorization | 128879 | 129401 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128879 | 1, 129401 |
| Number of properties | 8 | 9 |
| Additive primes | 4994th | |
| Chen primes | 5216th | 5233rd |
| Emirps | 2432nd | |
| Happy primes | 1875th | 1883rd |
| Harmonic primes | 4542nd | |
| Isolated primes | 9057th | |
| Primes | 12064th | 12109th |
| Pythagorean primes | 6027th | |
| Safe primes | 820th | |
| Sexy primes (2nd member) | 2995th | |
| Sophie germain primes | 1453rd | |
| Super primes | 1450th | |
| Twin primes (1st member) | 1511th | |
| Ulam primes | 850th | |
| Roman numberals | ||
| Base 2 | 111110111011011112 | 111111001011110012 |
| Base 3 | 201122100223 | 201201111223 |
| Base 4 | 1331312334 | 1332113214 |
| Base 5 | 131110045 | 131201015 |
| Base 6 | 24323556 | 24350256 |
| Base 7 | 10445127 | 10461567 |
| Base 8 | 3735578 | 3745718 |
| Base 9 | 2157089 | 2164489 |
| Base 10 | 12887910 | 12940110 |
| Base 11 | 8891311 | 8924811 |
| Base 12 | 626bb12 | 62a7512 |
| Base 13 | 4687a13 | 46b8c13 |
| Base 14 | 34d7914 | 3522d14 |
| Base 15 | 282be15 | 2851b15 |
| Base 16 | 1f76f16 | 1f97916 |