Compare 18 vs 53
Property | 18 | 53 |
---|---|---|
Type | composite number | prime |
Unique factors | 2 | 1 |
Total factors | 3 | 1 |
Prime factorization | 21 × 32 | 531 |
Prime factorization | 2 × 3 × 3 | 53 |
Divisors count | 6 | 2 |
Divisors | 1, 2, 3, 6, 9, 18 | 1, 53 |
Number of properties | 0 | 18 |
Chen primes | 15th | |
Class 1+ primes | 10th | |
Good primes | 7th | |
Isolated primes | 5th | |
Left-truncatable primes | 11th | |
Pierpont primes of the 2nd kind | 10th | |
Primes | 16th | |
Pythagorean primes | 7th | |
Restricted right-truncatable primes | 1st | |
Right-truncatable primes | 9th | |
Sexy primes (1st member) | 11th | |
Sexy primes (2nd member) | 10th | |
Sexy prime quadrupletss (3rd member) | 3rd | |
Sexy prime triplets (2nd member) | 7th | |
Sexy prime triplets (3rd member) | 6th | |
Sophie germain primes | 8th | |
Two-sided primes | 7th | |
Ulam primes | 6th | |
Roman numberals | XVIII | LIII |
Base 2 | 100102 | 1101012 |
Base 3 | 2003 | 12223 |
Base 4 | 1024 | 3114 |
Base 5 | 335 | 2035 |
Base 6 | 306 | 1256 |
Base 7 | 247 | 1047 |
Base 8 | 228 | 658 |
Base 9 | 209 | 589 |
Base 10 | 1810 | 5310 |
Base 11 | 1711 | 4911 |
Base 12 | 1612 | 4512 |
Base 13 | 1513 | 4113 |
Base 14 | 1414 | 3b14 |
Base 15 | 1315 | 3815 |
Base 16 | 1216 | 3516 |