Compare 20551 vs 21013
| Property | 20551 | 21013 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 205511 | 210131 |
| Prime factorization | 20551 | 21013 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20551 | 1, 21013 |
| Number of properties | 4 | 13 |
| Additive primes | 1077th | 1095th |
| Centered square primes | 37th | |
| Cousin primes (1st member) | 358th | |
| Harmonic primes | 868th | |
| Lucky primes | 376th | 384th |
| Primes | 2320th | 2363rd |
| Prime quadruplets (2nd member) | 20th | |
| Prime quintuplet 2s (2nd member) | 7th | |
| Prime triplets (1st member) | 176th | |
| Prime triplets (2nd member) | 175th | |
| Pythagorean primes | 1174th | |
| Sexy primes (1st member) | 715th | |
| Twin primes (2nd member) | 350th | 358th |
| Roman numberals | ||
| Base 2 | 1010000010001112 | 1010010000101012 |
| Base 3 | 10010120113 | 10012110213 |
| Base 4 | 110010134 | 110201114 |
| Base 5 | 11242015 | 11330235 |
| Base 6 | 2350516 | 2411416 |
| Base 7 | 1136267 | 1151567 |
| Base 8 | 501078 | 510258 |
| Base 9 | 311649 | 317379 |
| Base 10 | 2055110 | 2101310 |
| Base 11 | 1449311 | 1487311 |
| Base 12 | ba8712 | 101b112 |
| Base 13 | 947b13 | 974513 |
| Base 14 | 76bd14 | 792d14 |
| Base 15 | 615115 | 635d15 |
| Base 16 | 504716 | 521516 |