Compare 21395 vs 21407
| Property | 21395 | 21407 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 111 × 3891 | 214071 |
| Prime factorization | 5 × 11 × 389 | 21407 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 11, 55, 389, 1945, 4279, 21395 | 1, 21407 |
| Number of properties | 0 | 6 |
| Chen primes | 1180th | |
| Happy primes | 398th | |
| Isolated primes | 1679th | |
| Long primes | 911th | |
| Primes | 2404th | |
| Sexy primes (2nd member) | 730th | |
| Roman numberals | ||
| Base 2 | 1010011100100112 | 1010011100111112 |
| Base 3 | 10021001023 | 10021002123 |
| Base 4 | 110321034 | 110321334 |
| Base 5 | 11410405 | 11411125 |
| Base 6 | 2430156 | 2430356 |
| Base 7 | 1162437 | 1162617 |
| Base 8 | 516238 | 516378 |
| Base 9 | 323129 | 323259 |
| Base 10 | 2139510 | 2140710 |
| Base 11 | 1509011 | 150a111 |
| Base 12 | 1046b12 | 1047b12 |
| Base 13 | 997a13 | 998913 |
| Base 14 | 7b2314 | 7b3114 |
| Base 15 | 651515 | 652215 |
| Base 16 | 539316 | 539f16 |