Compare 21380 vs 21383
| Property | 21380 | 21383 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 51 × 10691 | 213831 |
| Prime factorization | 2 × 2 × 5 × 1069 | 21383 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 1069, 2138, 4276, 5345, 10690, 21380 | 1, 21383 |
| Number of properties | 0 | 10 |
| Additive primes | 1113th | |
| Cousin primes (2nd member) | 364th | |
| Harmonic primes | 881st | |
| Isolated primes | 1675th | |
| Long primes | 910th | |
| Primes | 2400th | |
| Prime triplets (3rd member) | 181st | |
| Safe primes | 201st | |
| Sexy primes (2nd member) | 728th | |
| Sophie germain primes | 348th | |
| Roman numberals | ||
| Base 2 | 1010011100001002 | 1010011100001112 |
| Base 3 | 10020222123 | 10020222223 |
| Base 4 | 110320104 | 110320134 |
| Base 5 | 11410105 | 11410135 |
| Base 6 | 2425526 | 2425556 |
| Base 7 | 1162227 | 1162257 |
| Base 8 | 516048 | 516078 |
| Base 9 | 322859 | 322889 |
| Base 10 | 2138010 | 2138310 |
| Base 11 | 1507711 | 1507a11 |
| Base 12 | 1045812 | 1045b12 |
| Base 13 | 996813 | 996b13 |
| Base 14 | 7b1214 | 7b1514 |
| Base 15 | 650515 | 650815 |
| Base 16 | 538416 | 538716 |