Compare 21949 vs 21961
| Property | 21949 | 21961 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 471 × 4671 | 219611 |
| Prime factorization | 47 × 467 | 21961 |
| Divisors count | 4 | 2 |
| Divisors | 1, 47, 467, 21949 | 1, 21961 |
| Number of properties | 1 | 5 |
| Additive primes | 1139th | |
| Chen primes | 1206th | |
| Isolated primes | 1718th | |
| Primes | 2461st | |
| Pythagorean primes | 1221st | |
| Semiprimes | 5540th | |
| Roman numberals | ||
| Base 2 | 1010101101111012 | 1010101110010012 |
| Base 3 | 10100022213 | 10100101013 |
| Base 4 | 111123314 | 111130214 |
| Base 5 | 12002445 | 12003215 |
| Base 6 | 2453416 | 2454016 |
| Base 7 | 1206647 | 1210127 |
| Base 8 | 526758 | 527118 |
| Base 9 | 330879 | 331119 |
| Base 10 | 2194910 | 2196110 |
| Base 11 | 1554411 | 1555511 |
| Base 12 | 1085112 | 1086112 |
| Base 13 | 9cb513 | 9cc413 |
| Base 14 | 7ddb14 | 800914 |
| Base 15 | 678415 | 679115 |
| Base 16 | 55bd16 | 55c916 |