Compare 20401 vs 20407
| Property | 20401 | 20407 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 8871 | 204071 |
| Prime factorization | 23 × 887 | 20407 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 887, 20401 | 1, 20407 |
| Number of properties | 1 | 6 |
| Additive primes | 1072nd | |
| Chen primes | 1134th | |
| Cousin primes (1st member) | 352nd | |
| Isolated primes | 1615th | |
| Long primes | 880th | |
| Primes | 2306th | |
| Semiprimes | 5178th | |
| Roman numberals | ||
| Base 2 | 1001111101100012 | 1001111101101112 |
| Base 3 | 10002221213 | 10002222113 |
| Base 4 | 103323014 | 103323134 |
| Base 5 | 11231015 | 11231125 |
| Base 6 | 2342416 | 2342516 |
| Base 7 | 1133237 | 1133327 |
| Base 8 | 476618 | 476678 |
| Base 9 | 308779 | 308849 |
| Base 10 | 2040110 | 2040710 |
| Base 11 | 1436711 | 1437211 |
| Base 12 | b98112 | b98712 |
| Base 13 | 939413 | 939a13 |
| Base 14 | 761314 | 761914 |
| Base 15 | 60a115 | 60a715 |
| Base 16 | 4fb116 | 4fb716 |