Compare 4013 vs 4021
| Property | 4013 | 4021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 40131 | 40211 |
| Prime factorization | 4013 | 4021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 4013 | 1, 4021 |
| Number of properties | 8 | 6 |
| Additive primes | 285th | |
| Harmonic primes | 199th | |
| Isolated primes | 347th | |
| Primes | 554th | 556th |
| Pythagorean primes | 271st | 272nd |
| Sexy primes (1st member) | 205th | 206th |
| Sexy primes (2nd member) | 204th | |
| Sexy prime quadrupletss (3rd member) | 17th | |
| Sexy prime triplets (2nd member) | 72nd | |
| Sexy prime triplets (3rd member) | 71st | |
| Twin primes (2nd member) | 105th | |
| Roman numberals | MMMMXIII | MMMMXXI |
| Base 2 | 1111101011012 | 1111101101012 |
| Base 3 | 121111223 | 121112213 |
| Base 4 | 3322314 | 3323114 |
| Base 5 | 1120235 | 1120415 |
| Base 6 | 303256 | 303416 |
| Base 7 | 144627 | 145037 |
| Base 8 | 76558 | 76658 |
| Base 9 | 54489 | 54579 |
| Base 10 | 401310 | 402110 |
| Base 11 | 301911 | 302611 |
| Base 12 | 23a512 | 23b112 |
| Base 13 | 1a9913 | 1aa413 |
| Base 14 | 166914 | 167314 |
| Base 15 | 12c815 | 12d115 |
| Base 16 | fad16 | fb516 |