Compare 206639 vs 206879
| Property | 206639 | 206879 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2066391 | 2068791 |
| Prime factorization | 206639 | 206879 |
| Divisors count | 2 | 2 |
| Divisors | 1, 206639 | 1, 206879 |
| Number of properties | 5 | 6 |
| Chen primes | 7741st | 7749th |
| Good primes | 1044th | |
| Harmonic primes | 6946th | |
| Isolated primes | 14101st | |
| Primes | 18523rd | 18536th |
| Safe primes | 1207th | |
| Sophie germain primes | 2110th | |
| Super primes | 2122nd | |
| Twin primes (1st member) | 2217th | |
| Roman numberals | ||
| Base 2 | 1100100111001011112 | 1100101000000111112 |
| Base 3 | 1011111100223 | 1011112100123 |
| Base 4 | 3021302334 | 3022001334 |
| Base 5 | 231030245 | 231100045 |
| Base 6 | 42323556 | 42334356 |
| Base 7 | 15203067 | 15211017 |
| Base 8 | 6234578 | 6240378 |
| Base 9 | 3444089 | 3447059 |
| Base 10 | 20663910 | 20687910 |
| Base 11 | 13128411 | 13148211 |
| Base 12 | 9b6bb12 | 9b87b12 |
| Base 13 | 7309413 | 7321a13 |
| Base 14 | 5543d14 | 5557114 |
| Base 15 | 4135e15 | 4146e15 |
| Base 16 | 3272f16 | 3281f16 |