Compare 387 vs 389
Property | 387 | 389 |
---|---|---|
Type | composite number | prime |
Unique factors | 2 | 1 |
Total factors | 3 | 1 |
Prime factorization | 32 × 431 | 3891 |
Prime factorization | 3 × 3 × 43 | 389 |
Divisors count | 6 | 2 |
Divisors | 1, 3, 9, 43, 129, 387 | 1, 389 |
Number of properties | 0 | 7 |
Chen primes | 55th | |
Emirps | 20th | |
Isolated primes | 36th | |
Long primes | 29th | |
Primes | 77th | |
Pythagorean primes | 36th | |
Sexy primes (2nd member) | 42nd | |
Roman numberals | CCCLXXXVII | CCCLXXXIX |
Base 2 | 1100000112 | 1100001012 |
Base 3 | 1121003 | 1121023 |
Base 4 | 120034 | 120114 |
Base 5 | 30225 | 30245 |
Base 6 | 14436 | 14456 |
Base 7 | 10627 | 10647 |
Base 8 | 6038 | 6058 |
Base 9 | 4709 | 4729 |
Base 10 | 38710 | 38910 |
Base 11 | 32211 | 32411 |
Base 12 | 28312 | 28512 |
Base 13 | 23a13 | 23c13 |
Base 14 | 1d914 | 1db14 |
Base 15 | 1ac15 | 1ae15 |
Base 16 | 18316 | 18516 |