Compare 21956 vs 21961
| Property | 21956 | 21961 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 111 × 4991 | 219611 |
| Prime factorization | 2 × 2 × 11 × 499 | 21961 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 11, 22, 44, 499, 998, 1996, 5489, 10978, 21956 | 1, 21961 |
| Number of properties | 0 | 5 |
| Additive primes | 1139th | |
| Chen primes | 1206th | |
| Isolated primes | 1718th | |
| Primes | 2461st | |
| Pythagorean primes | 1221st | |
| Roman numberals | ||
| Base 2 | 1010101110001002 | 1010101110010012 |
| Base 3 | 10100100123 | 10100101013 |
| Base 4 | 111130104 | 111130214 |
| Base 5 | 12003115 | 12003215 |
| Base 6 | 2453526 | 2454016 |
| Base 7 | 1210047 | 1210127 |
| Base 8 | 527048 | 527118 |
| Base 9 | 331059 | 331119 |
| Base 10 | 2195610 | 2196110 |
| Base 11 | 1555011 | 1555511 |
| Base 12 | 1085812 | 1086112 |
| Base 13 | 9cbc13 | 9cc413 |
| Base 14 | 800414 | 800914 |
| Base 15 | 678b15 | 679115 |
| Base 16 | 55c416 | 55c916 |