Compare 21139 vs 21187
| Property | 21139 | 21187 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211391 | 211871 |
| Prime factorization | 21139 | 21187 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21139 | 1, 21187 |
| Number of properties | 5 | 7 |
| Additive primes | 1107th | |
| Cousin primes (1st member) | 360th | 361st |
| Good primes | 266th | |
| Harmonic primes | 874th | |
| Isolated primes | 1656th | 1663rd |
| Lucky primes | 385th | |
| Primes | 2375th | 2382nd |
| Prime triplets (1st member) | 178th | |
| Sexy primes (1st member) | 722nd | |
| Roman numberals | ||
| Base 2 | 1010010100100112 | 1010010110000112 |
| Base 3 | 10012222213 | 10020012013 |
| Base 4 | 110221034 | 110230034 |
| Base 5 | 11340245 | 11342225 |
| Base 6 | 2415116 | 2420316 |
| Base 7 | 1154267 | 1155257 |
| Base 8 | 512238 | 513038 |
| Base 9 | 318879 | 320519 |
| Base 10 | 2113910 | 2118710 |
| Base 11 | 1497811 | 14a1111 |
| Base 12 | 1029712 | 1031712 |
| Base 13 | 981113 | 984a13 |
| Base 14 | 79bd14 | 7a1514 |
| Base 15 | 63e415 | 642715 |
| Base 16 | 529316 | 52c316 |