Compare 21139 vs 21613
| Property | 21139 | 21613 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211391 | 216131 |
| Prime factorization | 21139 | 21613 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21139 | 1, 21613 |
| Number of properties | 5 | 8 |
| Additive primes | 1126th | |
| Cousin primes (1st member) | 360th | 370th |
| Good primes | 266th | |
| Isolated primes | 1656th | |
| Left-truncatable primes | 172nd | |
| Lucky primes | 385th | 392nd |
| Primes | 2375th | 2428th |
| Prime triplets (2nd member) | 185th | |
| Pythagorean primes | 1204th | |
| Twin primes (2nd member) | 369th | |
| Roman numberals | ||
| Base 2 | 1010010100100112 | 1010100011011012 |
| Base 3 | 10012222213 | 10021221113 |
| Base 4 | 110221034 | 111012314 |
| Base 5 | 11340245 | 11424235 |
| Base 6 | 2415116 | 2440216 |
| Base 7 | 1154267 | 1200047 |
| Base 8 | 512238 | 521558 |
| Base 9 | 318879 | 325749 |
| Base 10 | 2113910 | 2161310 |
| Base 11 | 1497811 | 1526911 |
| Base 12 | 1029712 | 1061112 |
| Base 13 | 981113 | 9ab713 |
| Base 14 | 79bd14 | 7c3b14 |
| Base 15 | 63e415 | 660d15 |
| Base 16 | 529316 | 546d16 |