Compare 145981 vs 145991
| Property | 145981 | 145991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 111 × 231 × 5771 | 1459911 |
| Prime factorization | 11 × 23 × 577 | 145991 |
| Divisors count | 8 | 2 |
| Divisors | 1, 11, 23, 253, 577, 6347, 13271, 145981 | 1, 145991 |
| Number of properties | 0 | 7 |
| Additive primes | 5576th | |
| Chen primes | 5801st | |
| Cousin primes (2nd member) | 1660th | |
| Harmonic primes | 5073rd | |
| Isolated primes | 10190th | |
| Primes | 13507th | |
| Sophie germain primes | 1603rd | |
| Roman numberals | ||
| Base 2 | 1000111010001111012 | 1000111010010001112 |
| Base 3 | 211020202013 | 211020210023 |
| Base 4 | 2032203314 | 2032210134 |
| Base 5 | 141324115 | 141324315 |
| Base 6 | 30435016 | 30435156 |
| Base 7 | 11454137 | 11454267 |
| Base 8 | 4350758 | 4351078 |
| Base 9 | 2422219 | 2422329 |
| Base 10 | 14598110 | 14599110 |
| Base 11 | 9a75011 | 9a75a11 |
| Base 12 | 7059112 | 7059b12 |
| Base 13 | 515a413 | 515b113 |
| Base 14 | 3b2b314 | 3b2bd14 |
| Base 15 | 2d3c115 | 2d3cb15 |
| Base 16 | 23a3d16 | 23a4716 |