Compare 13 vs 54
| Property | 13 | 54 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 4 |
| Prime factorization | 131 | 21 × 33 |
| Prime factorization | 13 | 2 × 3 × 3 × 3 |
| Divisors count | 2 | 8 |
| Divisors | 1, 13 | 1, 2, 3, 6, 9, 18, 27, 54 |
| Number of properties | 32 | 0 |
| Centered square primes | 2nd | |
| Chen primes | 6th | |
| Cousin primes (1st member) | 3rd | |
| Cuban primes 2 | 1st | |
| Emirps | 1st | |
| Fibonacci primes | 4th | |
| Happy primes | 2nd | |
| Harmonic primes | 2nd | |
| Left-truncatable primes | 5th | |
| Lucky primes | 3rd | |
| Multiplicative primes | 5th | |
| Pierpont primes | 5th | |
| Primes | 6th | |
| Prime quadruplets (2nd member) | 2nd | |
| Prime quadruplets (4th member) | 1st | |
| Prime quintuplet 1s (3rd member) | 1st | |
| Prime quintuplet 2s (2nd member) | 2nd | |
| Prime quintuplet 2s (4th member) | 1st | |
| Prime sextuplets (3rd member) | 1st | |
| Prime triplets (1st member) | 4th | |
| Prime triplets (2nd member) | 3rd | |
| Prime triplets (3rd member) | 2nd | |
| Proth primes | 3rd | |
| Pythagorean primes | 2nd | |
| Sexy primes (1st member) | 4th | |
| Sexy primes (2nd member) | 2nd | |
| Sexy prime triplets (2nd member) | 2nd | |
| Solinas primes | 5th | |
| Thabit primes of the 2nd kind | 2nd | |
| Twin primes (2nd member) | 3rd | |
| Ulam primes | 4th | |
| Wilson primes | 2nd | |
| Roman numberals | XIII | LIV |
| Base 2 | 11012 | 1101102 |
| Base 3 | 1113 | 20003 |
| Base 4 | 314 | 3124 |
| Base 5 | 235 | 2045 |
| Base 6 | 216 | 1306 |
| Base 7 | 167 | 1057 |
| Base 8 | 158 | 668 |
| Base 9 | 149 | 609 |
| Base 10 | 1310 | 5410 |
| Base 11 | 1211 | 4a11 |
| Base 12 | 1112 | 4612 |
| Base 13 | 1013 | 4213 |
| Base 14 | d14 | 3c14 |
| Base 15 | d15 | 3915 |
| Base 16 | d16 | 3616 |