Compare 21121 vs 21143
| Property | 21121 | 21143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211211 | 211431 |
| Prime factorization | 21121 | 21143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21121 | 1, 21143 |
| Number of properties | 4 | 9 |
| Additive primes | 1102nd | 1103rd |
| Chen primes | 1167th | |
| Cousin primes (2nd member) | 360th | |
| Happy primes | 393rd | |
| Harmonic primes | 873rd | |
| Isolated primes | 1655th | 1657th |
| Long primes | 903rd | |
| Primes | 2374th | 2376th |
| Pythagorean primes | 1179th | |
| Sexy primes (1st member) | 719th | |
| Roman numberals | ||
| Base 2 | 1010010100000012 | 1010010100101112 |
| Base 3 | 10012220213 | 10020000023 |
| Base 4 | 110220014 | 110221134 |
| Base 5 | 11334415 | 11340335 |
| Base 6 | 2414416 | 2415156 |
| Base 7 | 1154027 | 1154337 |
| Base 8 | 512018 | 512278 |
| Base 9 | 318679 | 320029 |
| Base 10 | 2112110 | 2114310 |
| Base 11 | 1496111 | 1498111 |
| Base 12 | 1028112 | 1029b12 |
| Base 13 | 97c913 | 981513 |
| Base 14 | 79a914 | 79c314 |
| Base 15 | 63d115 | 63e815 |
| Base 16 | 528116 | 529716 |