Compare 2521 vs 2551
| Property | 2521 | 2551 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 25211 | 25511 |
| Prime factorization | 2521 | 2551 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2521 | 1, 2551 |
| Number of properties | 6 | 4 |
| Additive primes | 195th | |
| Centered square primes | 18th | |
| Good primes | 71st | |
| Harmonic primes | 138th | |
| Isolated primes | 226th | |
| Primes | 369th | 374th |
| Pythagorean primes | 181st | |
| Sexy primes (1st member) | 153rd | |
| Twin primes (2nd member) | 73rd | |
| Roman numberals | MMDXXI | MMDLI |
| Base 2 | 1001110110012 | 1001111101112 |
| Base 3 | 101101013 | 101111113 |
| Base 4 | 2131214 | 2133134 |
| Base 5 | 400415 | 402015 |
| Base 6 | 154016 | 154516 |
| Base 7 | 102317 | 103037 |
| Base 8 | 47318 | 47678 |
| Base 9 | 34119 | 34449 |
| Base 10 | 252110 | 255110 |
| Base 11 | 199211 | 1a0a11 |
| Base 12 | 156112 | 158712 |
| Base 13 | 11bc13 | 121313 |
| Base 14 | cc114 | d0314 |
| Base 15 | b3115 | b5115 |
| Base 16 | 9d916 | 9f716 |