Compare 18 vs 43
Property | 18 | 43 |
---|---|---|
Type | composite number | prime |
Unique factors | 2 | 1 |
Total factors | 3 | 1 |
Prime factorization | 21 × 32 | 431 |
Prime factorization | 2 × 3 × 3 | 43 |
Divisors count | 6 | 2 |
Divisors | 1, 2, 3, 6, 9, 18 | 1, 43 |
Number of properties | 0 | 12 |
Additive primes | 9th | |
Centered heptagonal primes | 1st | |
Cousin primes (1st member) | 6th | |
Left-truncatable primes | 9th | |
Lucky primes | 6th | |
Primes | 14th | |
Prime triplets (2nd member) | 7th | |
Prime triplets (3rd member) | 6th | |
Sexy primes (2nd member) | 8th | |
Sexy prime triplets (3rd member) | 5th | |
Twin primes (2nd member) | 6th | |
Wagstaff primes | 3rd | |
Roman numberals | XVIII | XLIII |
Base 2 | 100102 | 1010112 |
Base 3 | 2003 | 11213 |
Base 4 | 1024 | 2234 |
Base 5 | 335 | 1335 |
Base 6 | 306 | 1116 |
Base 7 | 247 | 617 |
Base 8 | 228 | 538 |
Base 9 | 209 | 479 |
Base 10 | 1810 | 4310 |
Base 11 | 1711 | 3a11 |
Base 12 | 1612 | 3712 |
Base 13 | 1513 | 3413 |
Base 14 | 1414 | 3114 |
Base 15 | 1315 | 2d15 |
Base 16 | 1216 | 2b16 |