Compare 21031 vs 21187
| Property | 21031 | 21187 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 210311 | 211871 |
| Prime factorization | 21031 | 21187 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21031 | 1, 21187 |
| Number of properties | 3 | 7 |
| Additive primes | 1098th | 1107th |
| Cousin primes (1st member) | 361st | |
| Harmonic primes | 874th | |
| Isolated primes | 1650th | 1663rd |
| Primes | 2367th | 2382nd |
| Prime triplets (1st member) | 178th | |
| Sexy primes (1st member) | 722nd | |
| Roman numberals | ||
| Base 2 | 1010010001001112 | 1010010110000112 |
| Base 3 | 10012112213 | 10020012013 |
| Base 4 | 110202134 | 110230034 |
| Base 5 | 11331115 | 11342225 |
| Base 6 | 2412116 | 2420316 |
| Base 7 | 1152137 | 1155257 |
| Base 8 | 510478 | 513038 |
| Base 9 | 317579 | 320519 |
| Base 10 | 2103110 | 2118710 |
| Base 11 | 1488a11 | 14a1111 |
| Base 12 | 1020712 | 1031712 |
| Base 13 | 975a13 | 984a13 |
| Base 14 | 794314 | 7a1514 |
| Base 15 | 637115 | 642715 |
| Base 16 | 522716 | 52c316 |