Compare 21613 vs 21871
| Property | 21613 | 21871 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 216131 | 218711 |
| Prime factorization | 21613 | 21871 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21613 | 1, 21871 |
| Number of properties | 8 | 3 |
| Additive primes | 1126th | 1135th |
| Cousin primes (1st member) | 370th | |
| Isolated primes | 1711th | |
| Left-truncatable primes | 172nd | |
| Lucky primes | 392nd | |
| Primes | 2428th | 2454th |
| Prime triplets (2nd member) | 185th | |
| Pythagorean primes | 1204th | |
| Twin primes (2nd member) | 369th | |
| Roman numberals | ||
| Base 2 | 1010100011011012 | 1010101011011112 |
| Base 3 | 10021221113 | 10100000013 |
| Base 4 | 111012314 | 111112334 |
| Base 5 | 11424235 | 11444415 |
| Base 6 | 2440216 | 2451316 |
| Base 7 | 1200047 | 1205237 |
| Base 8 | 521558 | 525578 |
| Base 9 | 325749 | 330019 |
| Base 10 | 2161310 | 2187110 |
| Base 11 | 1526911 | 1548311 |
| Base 12 | 1061112 | 107a712 |
| Base 13 | 9ab713 | 9c5513 |
| Base 14 | 7c3b14 | 7d8314 |
| Base 15 | 660d15 | 673115 |
| Base 16 | 546d16 | 556f16 |