Compare 21309 vs 21313
| Property | 21309 | 21313 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 71031 | 213131 |
| Prime factorization | 3 × 7103 | 21313 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 7103, 21309 | 1, 21313 |
| Number of properties | 1 | 7 |
| Cousin primes (1st member) | 362nd | |
| Good primes | 267th | |
| Isolated primes | 1671st | |
| Primes | 2392nd | |
| Prime triplets (1st member) | 179th | |
| Pythagorean primes | 1187th | |
| Semiprimes | 5400th | |
| Sexy primes (1st member) | 725th | |
| Roman numberals | ||
| Base 2 | 1010011001111012 | 1010011010000012 |
| Base 3 | 10020200203 | 10020201013 |
| Base 4 | 110303314 | 110310014 |
| Base 5 | 11402145 | 11402235 |
| Base 6 | 2423536 | 2424016 |
| Base 7 | 1160617 | 1160657 |
| Base 8 | 514758 | 515018 |
| Base 9 | 322069 | 322119 |
| Base 10 | 2130910 | 2131310 |
| Base 11 | 1501211 | 1501611 |
| Base 12 | 103b912 | 1040112 |
| Base 13 | 991213 | 991613 |
| Base 14 | 7aa114 | 7aa514 |
| Base 15 | 64a915 | 64ad15 |
| Base 16 | 533d16 | 534116 |