Compare 129215 vs 129221
| Property | 129215 | 129221 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 431 × 6011 | 1292211 |
| Prime factorization | 5 × 43 × 601 | 129221 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 43, 215, 601, 3005, 25843, 129215 | 1, 129221 |
| Number of properties | 0 | 7 |
| Additive primes | 4986th | |
| Chen primes | 5229th | |
| Emirps | 2441st | |
| Primes | 12095th | |
| Pythagorean primes | 6018th | |
| Sophie germain primes | 1450th | |
| Twin primes (1st member) | 1509th | |
| Roman numberals | ||
| Base 2 | 111111000101111112 | 111111000110001012 |
| Base 3 | 201200202023 | 201200202223 |
| Base 4 | 1332023334 | 1332030114 |
| Base 5 | 131133305 | 131133415 |
| Base 6 | 24341156 | 24341256 |
| Base 7 | 10455027 | 10455117 |
| Base 8 | 3742778 | 3743058 |
| Base 9 | 2162229 | 2162289 |
| Base 10 | 12921510 | 12922110 |
| Base 11 | 8909911 | 890a411 |
| Base 12 | 6293b12 | 6294512 |
| Base 13 | 46a7813 | 46a8113 |
| Base 14 | 3513914 | 3514114 |
| Base 15 | 2844515 | 2844b15 |
| Base 16 | 1f8bf16 | 1f8c516 |