Compare 21800 vs 21803
| Property | 21800 | 21803 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 23 × 52 × 1091 | 218031 |
| Prime factorization | 2 × 2 × 2 × 5 × 5 × 109 | 21803 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 2180, 2725, 4360, 5450, 10900, 21800 | 1, 21803 |
| Number of properties | 0 | 5 |
| Cousin primes (2nd member) | 371st | |
| Harmonic primes | 900th | |
| Isolated primes | 1705th | |
| Primes | 2446th | |
| Sophie germain primes | 353rd | |
| Roman numberals | ||
| Base 2 | 1010101001010002 | 1010101001010112 |
| Base 3 | 10022201023 | 10022201123 |
| Base 4 | 111102204 | 111102234 |
| Base 5 | 11442005 | 11442035 |
| Base 6 | 2445326 | 2445356 |
| Base 7 | 1203627 | 1203657 |
| Base 8 | 524508 | 524538 |
| Base 9 | 328129 | 328159 |
| Base 10 | 2180010 | 2180310 |
| Base 11 | 1541911 | 1542111 |
| Base 12 | 1074812 | 1074b12 |
| Base 13 | 9bcc13 | 9c0213 |
| Base 14 | 7d3214 | 7d3514 |
| Base 15 | 66d515 | 66d815 |
| Base 16 | 552816 | 552b16 |