Compare 20407 vs 20639
| Property | 20407 | 20639 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 204071 | 206391 |
| Prime factorization | 20407 | 20639 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20407 | 1, 20639 |
| Number of properties | 6 | 4 |
| Additive primes | 1072nd | |
| Chen primes | 1134th | 1143rd |
| Cousin primes (1st member) | 352nd | |
| Happy primes | 384th | |
| Isolated primes | 1615th | |
| Long primes | 880th | |
| Primes | 2306th | 2326th |
| Twin primes (1st member) | 351st | |
| Roman numberals | ||
| Base 2 | 1001111101101112 | 1010000100111112 |
| Base 3 | 10002222113 | 10010221023 |
| Base 4 | 103323134 | 110021334 |
| Base 5 | 11231125 | 11300245 |
| Base 6 | 2342516 | 2353156 |
| Base 7 | 1133327 | 1141137 |
| Base 8 | 476678 | 502378 |
| Base 9 | 308849 | 312729 |
| Base 10 | 2040710 | 2063910 |
| Base 11 | 1437211 | 1456311 |
| Base 12 | b98712 | bb3b12 |
| Base 13 | 939a13 | 951813 |
| Base 14 | 761914 | 774314 |
| Base 15 | 60a715 | 61ae15 |
| Base 16 | 4fb716 | 509f16 |