Compare 21008 vs 21019
| Property | 21008 | 21019 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 131 × 1011 | 210191 |
| Prime factorization | 2 × 2 × 2 × 2 × 13 × 101 | 21019 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 404, 808, 1313, 1616, 2626, 5252, 10504, 21008 | 1, 21019 |
| Number of properties | 0 | 10 |
| Additive primes | 1097th | |
| Cousin primes (1st member) | 359th | |
| Long primes | 899th | |
| Primes | 2365th | |
| Prime quadruplets (4th member) | 20th | |
| Prime quintuplet 2s (4th member) | 7th | |
| Prime triplets (2nd member) | 177th | |
| Prime triplets (3rd member) | 176th | |
| Sexy primes (2nd member) | 715th | |
| Twin primes (2nd member) | 359th | |
| Roman numberals | ||
| Base 2 | 1010010000100002 | 1010010000110112 |
| Base 3 | 10012110023 | 10012111113 |
| Base 4 | 110201004 | 110201234 |
| Base 5 | 11330135 | 11330345 |
| Base 6 | 2411326 | 2411516 |
| Base 7 | 1151517 | 1151657 |
| Base 8 | 510208 | 510338 |
| Base 9 | 317329 | 317449 |
| Base 10 | 2100810 | 2101910 |
| Base 11 | 1486911 | 1487911 |
| Base 12 | 101a812 | 101b712 |
| Base 13 | 974013 | 974b13 |
| Base 14 | 792814 | 793514 |
| Base 15 | 635815 | 636415 |
| Base 16 | 521016 | 521b16 |