Compare 21802 vs 21803
| Property | 21802 | 21803 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 111 × 9911 | 218031 |
| Prime factorization | 2 × 11 × 991 | 21803 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 11, 22, 991, 1982, 10901, 21802 | 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 | 1010101001010102 | 1010101001010112 |
| Base 3 | 10022201113 | 10022201123 |
| Base 4 | 111102224 | 111102234 |
| Base 5 | 11442025 | 11442035 |
| Base 6 | 2445346 | 2445356 |
| Base 7 | 1203647 | 1203657 |
| Base 8 | 524528 | 524538 |
| Base 9 | 328149 | 328159 |
| Base 10 | 2180210 | 2180310 |
| Base 11 | 1542011 | 1542111 |
| Base 12 | 1074a12 | 1074b12 |
| Base 13 | 9c0113 | 9c0213 |
| Base 14 | 7d3414 | 7d3514 |
| Base 15 | 66d715 | 66d815 |
| Base 16 | 552a16 | 552b16 |