Compare 21012 vs 21017
| Property | 21012 | 21017 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 22 × 31 × 171 × 1031 | 210171 |
| Prime factorization | 2 × 2 × 3 × 17 × 103 | 21017 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 103, 204, 206, 309, 412, 618, 1236, 1751, 3502, 5253, 7004, 10506, 21012 | 1, 21017 |
| Number of properties | 0 | 16 |
| Additive primes | 1096th | |
| Chen primes | 1164th | |
| Cousin primes (2nd member) | 358th | |
| Long primes | 898th | |
| Primes | 2364th | |
| Prime quadruplets (3rd member) | 20th | |
| Prime quintuplet 2s (3rd member) | 7th | |
| Prime triplets (1st member) | 177th | |
| Prime triplets (2nd member) | 176th | |
| Prime triplets (3rd member) | 175th | |
| Pythagorean primes | 1175th | |
| Sexy primes (1st member) | 716th | |
| Sexy primes (2nd member) | 714th | |
| Sexy prime triplets (2nd member) | 196th | |
| Twin primes (1st member) | 359th | |
| Ulam primes | 177th | |
| Roman numberals | ||
| Base 2 | 1010010000101002 | 1010010000110012 |
| Base 3 | 10012110203 | 10012111023 |
| Base 4 | 110201104 | 110201214 |
| Base 5 | 11330225 | 11330325 |
| Base 6 | 2411406 | 2411456 |
| Base 7 | 1151557 | 1151637 |
| Base 8 | 510248 | 510318 |
| Base 9 | 317369 | 317429 |
| Base 10 | 2101210 | 2101710 |
| Base 11 | 1487211 | 1487711 |
| Base 12 | 101b012 | 101b512 |
| Base 13 | 974413 | 974913 |
| Base 14 | 792c14 | 793314 |
| Base 15 | 635c15 | 636215 |
| Base 16 | 521416 | 521916 |