Compare 281 vs 290
Property | 281 | 290 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 3 |
Total factors | 1 | 3 |
Prime factorization | 2811 | 21 × 51 × 291 |
Prime factorization | 281 | 2 × 5 × 29 |
Divisors count | 2 | 8 |
Divisors | 1, 281 | 1, 2, 5, 10, 29, 58, 145, 290 |
Number of properties | 10 | 0 |
Additive primes | 34th | |
Centered decagonal primes | 7th | |
Chen primes | 45th | |
Cousin primes (2nd member) | 17th | |
Harmonic primes | 23rd | |
Primes | 60th | |
Prime triplets (2nd member) | 17th | |
Pythagorean primes | 28th | |
Sophie germain primes | 19th | |
Twin primes (1st member) | 19th | |
Roman numberals | CCLXXXI | CCXC |
Base 2 | 1000110012 | 1001000102 |
Base 3 | 1011023 | 1012023 |
Base 4 | 101214 | 102024 |
Base 5 | 21115 | 21305 |
Base 6 | 11456 | 12026 |
Base 7 | 5517 | 5637 |
Base 8 | 4318 | 4428 |
Base 9 | 3429 | 3529 |
Base 10 | 28110 | 29010 |
Base 11 | 23611 | 24411 |
Base 12 | 1b512 | 20212 |
Base 13 | 18813 | 19413 |
Base 14 | 16114 | 16a14 |
Base 15 | 13b15 | 14515 |
Base 16 | 11916 | 12216 |