Compare 18121 vs 18451
| Property | 18121 | 18451 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 181211 | 184511 |
| Prime factorization | 18121 | 18451 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18121 | 1, 18451 |
| Number of properties | 7 | 6 |
| Additive primes | 975th | 992nd |
| Chen primes | 1045th | |
| Harmonic primes | 751st | |
| Isolated primes | 1469th | |
| Lucky primes | 345th | |
| Primes | 2076th | 2114th |
| Pythagorean primes | 1025th | |
| Sexy primes (1st member) | 640th | 651st |
| Sexy prime triplets (1st member) | 178th | |
| Twin primes (2nd member) | 319th | |
| Roman numberals | ||
| Base 2 | 1000110110010012 | 1001000000100112 |
| Base 3 | 2202120113 | 2210221013 |
| Base 4 | 101230214 | 102001034 |
| Base 5 | 10344415 | 10423015 |
| Base 6 | 2155216 | 2212316 |
| Base 7 | 1035557 | 1045367 |
| Base 8 | 433118 | 440238 |
| Base 9 | 267649 | 272719 |
| Base 10 | 1812110 | 1845110 |
| Base 11 | 1268411 | 1295411 |
| Base 12 | a5a112 | a81712 |
| Base 13 | 832c13 | 852413 |
| Base 14 | 686514 | 6a1d14 |
| Base 15 | 558115 | 570115 |
| Base 16 | 46c916 | 481316 |