Compare 20897 vs 21149
| Property | 20897 | 21149 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208971 | 211491 |
| Prime factorization | 20897 | 21149 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20897 | 1, 21149 |
| Number of properties | 9 | 11 |
| Additive primes | 1104th | |
| Chen primes | 1156th | 1168th |
| Good primes | 264th | |
| Happy primes | 394th | |
| Harmonic primes | 861st | |
| Isolated primes | 1658th | |
| Long primes | 893rd | 904th |
| Primes | 2350th | 2377th |
| Prime triplets (1st member) | 174th | |
| Pythagorean primes | 1169th | 1180th |
| Sexy primes (1st member) | 713th | |
| Sexy primes (2nd member) | 719th | |
| Sophie germain primes | 344th | |
| Super primes | 352nd | |
| Twin primes (1st member) | 356th | |
| Ulam primes | 178th | |
| Roman numberals | ||
| Base 2 | 1010001101000012 | 1010010100111012 |
| Base 3 | 10011222223 | 10020000223 |
| Base 4 | 110122014 | 110221314 |
| Base 5 | 11320425 | 11340445 |
| Base 6 | 2404256 | 2415256 |
| Base 7 | 1146327 | 1154427 |
| Base 8 | 506418 | 512358 |
| Base 9 | 315889 | 320089 |
| Base 10 | 2089710 | 2114910 |
| Base 11 | 1477811 | 1498711 |
| Base 12 | 1011512 | 102a512 |
| Base 13 | 968613 | 981b13 |
| Base 14 | 788914 | 79c914 |
| Base 15 | 62d215 | 63ee15 |
| Base 16 | 51a116 | 529d16 |