Compare 20391 vs 20393
| Property | 20391 | 20393 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 71 × 9711 | 203931 |
| Prime factorization | 3 × 7 × 971 | 20393 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 7, 21, 971, 2913, 6797, 20391 | 1, 20393 |
| Number of properties | 0 | 11 |
| Additive primes | 1070th | |
| Chen primes | 1132nd | |
| Cousin primes (2nd member) | 351st | |
| Happy primes | 383rd | |
| Harmonic primes | 839th | |
| Isolated primes | 1613th | |
| Long primes | 879th | |
| Primes | 2304th | |
| Pythagorean primes | 1149th | |
| Sexy primes (1st member) | 705th | |
| Sophie germain primes | 330th | |
| Roman numberals | ||
| Base 2 | 1001111101001112 | 1001111101010012 |
| Base 3 | 10002220203 | 10002220223 |
| Base 4 | 103322134 | 103322214 |
| Base 5 | 11230315 | 11230335 |
| Base 6 | 2342236 | 2342256 |
| Base 7 | 1133107 | 1133127 |
| Base 8 | 476478 | 476518 |
| Base 9 | 308669 | 308689 |
| Base 10 | 2039110 | 2039310 |
| Base 11 | 1435811 | 1435a11 |
| Base 12 | b97312 | b97512 |
| Base 13 | 938713 | 938913 |
| Base 14 | 760714 | 760914 |
| Base 15 | 609615 | 609815 |
| Base 16 | 4fa716 | 4fa916 |