Compare 21013 vs 21517
| Property | 21013 | 21517 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 210131 | 215171 |
| Prime factorization | 21013 | 21517 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21013 | 1, 21517 |
| Number of properties | 13 | 7 |
| Additive primes | 1095th | |
| Centered square primes | 37th | |
| Cousin primes (1st member) | 358th | 368th |
| Harmonic primes | 868th | |
| Isolated primes | 1687th | |
| Lucky primes | 384th | |
| Primes | 2363rd | 2414th |
| Prime quadruplets (2nd member) | 20th | |
| Prime quintuplet 2s (2nd member) | 7th | |
| Prime triplets (1st member) | 176th | 183rd |
| Prime triplets (2nd member) | 175th | |
| Pythagorean primes | 1174th | 1196th |
| Sexy primes (1st member) | 715th | 734th |
| Sexy prime triplets (1st member) | 200th | |
| Twin primes (2nd member) | 358th | |
| Roman numberals | ||
| Base 2 | 1010010000101012 | 1010100000011012 |
| Base 3 | 10012110213 | 10021112213 |
| Base 4 | 110201114 | 111000314 |
| Base 5 | 11330235 | 11420325 |
| Base 6 | 2411416 | 2433416 |
| Base 7 | 1151567 | 1165067 |
| Base 8 | 510258 | 520158 |
| Base 9 | 317379 | 324579 |
| Base 10 | 2101310 | 2151710 |
| Base 11 | 1487311 | 1519111 |
| Base 12 | 101b112 | 1055112 |
| Base 13 | 974513 | 9a4213 |
| Base 14 | 792d14 | 7bad14 |
| Base 15 | 635d15 | 659715 |
| Base 16 | 521516 | 540d16 |