Compare 20681 vs 21139
| Property | 20681 | 21139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206811 | 211391 |
| Prime factorization | 20681 | 21139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20681 | 1, 21139 |
| Number of properties | 5 | 5 |
| Additive primes | 1082nd | |
| Cousin primes (1st member) | 360th | |
| Good primes | 258th | 266th |
| Isolated primes | 1628th | 1656th |
| Lucky primes | 385th | |
| Primes | 2329th | 2375th |
| Pythagorean primes | 1158th | |
| Roman numberals | ||
| Base 2 | 1010000110010012 | 1010010100100112 |
| Base 3 | 10011002223 | 10012222213 |
| Base 4 | 110030214 | 110221034 |
| Base 5 | 11302115 | 11340245 |
| Base 6 | 2354256 | 2415116 |
| Base 7 | 1142037 | 1154267 |
| Base 8 | 503118 | 512238 |
| Base 9 | 313289 | 318879 |
| Base 10 | 2068110 | 2113910 |
| Base 11 | 145a111 | 1497811 |
| Base 12 | bb7512 | 1029712 |
| Base 13 | 954b13 | 981113 |
| Base 14 | 777314 | 79bd14 |
| Base 15 | 61db15 | 63e415 |
| Base 16 | 50c916 | 529316 |