Compare 21803 vs 21813
| Property | 21803 | 21813 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 218031 | 31 × 111 × 6611 |
| Prime factorization | 21803 | 3 × 11 × 661 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21803 | 1, 3, 11, 33, 661, 1983, 7271, 21813 |
| Number of properties | 5 | 0 |
| Cousin primes (2nd member) | 371st | |
| Harmonic primes | 900th | |
| Isolated primes | 1705th | |
| Primes | 2446th | |
| Sophie germain primes | 353rd | |
| Roman numberals | ||
| Base 2 | 1010101001010112 | 1010101001101012 |
| Base 3 | 10022201123 | 10022202203 |
| Base 4 | 111102234 | 111103114 |
| Base 5 | 11442035 | 11442235 |
| Base 6 | 2445356 | 2445536 |
| Base 7 | 1203657 | 1204117 |
| Base 8 | 524538 | 524658 |
| Base 9 | 328159 | 328269 |
| Base 10 | 2180310 | 2181310 |
| Base 11 | 1542111 | 1543011 |
| Base 12 | 1074b12 | 1075912 |
| Base 13 | 9c0213 | 9c0c13 |
| Base 14 | 7d3514 | 7d4114 |
| Base 15 | 66d815 | 66e315 |
| Base 16 | 552b16 | 553516 |