Compare 20407 vs 20807
| Property | 20407 | 20807 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 204071 | 208071 |
| Prime factorization | 20407 | 20807 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20407 | 1, 20807 |
| Number of properties | 6 | 7 |
| Additive primes | 1072nd | 1090th |
| Chen primes | 1134th | 1154th |
| Cousin primes (1st member) | 352nd | |
| Harmonic primes | 858th | |
| Isolated primes | 1615th | |
| Long primes | 880th | 890th |
| Primes | 2306th | 2343rd |
| Twin primes (1st member) | 355th | |
| Ulam primes | 174th | |
| Roman numberals | ||
| Base 2 | 1001111101101112 | 1010001010001112 |
| Base 3 | 10002222113 | 10011121223 |
| Base 4 | 103323134 | 110110134 |
| Base 5 | 11231125 | 11312125 |
| Base 6 | 2342516 | 2401556 |
| Base 7 | 1133327 | 1144437 |
| Base 8 | 476678 | 505078 |
| Base 9 | 308849 | 314789 |
| Base 10 | 2040710 | 2080710 |
| Base 11 | 1437211 | 146a611 |
| Base 12 | b98712 | 1005b12 |
| Base 13 | 939a13 | 961713 |
| Base 14 | 761914 | 782314 |
| Base 15 | 60a715 | 627215 |
| Base 16 | 4fb716 | 514716 |