Compare 21391 vs 21419
| Property | 21391 | 21419 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 213911 | 214191 |
| Prime factorization | 21391 | 21419 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21391 | 1, 21419 |
| Number of properties | 3 | 9 |
| Additive primes | 1114th | |
| Chen primes | 1181st | |
| Happy primes | 399th | |
| Harmonic primes | 882nd | |
| Isolated primes | 1676th | 1680th |
| Long primes | 912th | |
| Primes | 2401st | 2405th |
| Safe primes | 202nd | |
| Sexy primes (1st member) | 729th | |
| Sophie germain primes | 349th | |
| Roman numberals | ||
| Base 2 | 1010011100011112 | 1010011101010112 |
| Base 3 | 10021000213 | 10021010223 |
| Base 4 | 110320334 | 110322234 |
| Base 5 | 11410315 | 11411345 |
| Base 6 | 2430116 | 2430556 |
| Base 7 | 1162367 | 1163067 |
| Base 8 | 516178 | 516538 |
| Base 9 | 323079 | 323389 |
| Base 10 | 2139110 | 2141910 |
| Base 11 | 1508711 | 1510211 |
| Base 12 | 1046712 | 1048b12 |
| Base 13 | 997613 | 999813 |
| Base 14 | 7b1d14 | 7b3d14 |
| Base 15 | 651115 | 652e15 |
| Base 16 | 538f16 | 53ab16 |