Compare 21211 vs 21613
| Property | 21211 | 21613 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 212111 | 216131 |
| Prime factorization | 21211 | 21613 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21211 | 1, 21613 |
| Number of properties | 5 | 8 |
| Additive primes | 1108th | 1126th |
| Cousin primes (1st member) | 370th | |
| Isolated primes | 1664th | |
| Left-truncatable primes | 172nd | |
| Long primes | 906th | |
| Lucky primes | 388th | 392nd |
| Primes | 2385th | 2428th |
| Prime triplets (2nd member) | 185th | |
| Pythagorean primes | 1204th | |
| Twin primes (2nd member) | 369th | |
| Roman numberals | ||
| Base 2 | 1010010110110112 | 1010100011011012 |
| Base 3 | 10020021213 | 10021221113 |
| Base 4 | 110231234 | 111012314 |
| Base 5 | 11343215 | 11424235 |
| Base 6 | 2421116 | 2440216 |
| Base 7 | 1155617 | 1200047 |
| Base 8 | 513338 | 521558 |
| Base 9 | 320779 | 325749 |
| Base 10 | 2121110 | 2161310 |
| Base 11 | 14a3311 | 1526911 |
| Base 12 | 1033712 | 1061112 |
| Base 13 | 986813 | 9ab713 |
| Base 14 | 7a3114 | 7c3b14 |
| Base 15 | 644115 | 660d15 |
| Base 16 | 52db16 | 546d16 |