Compare 631 vs 640
Property | 631 | 640 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 2 |
Total factors | 1 | 8 |
Prime factorization | 6311 | 27 × 51 |
Prime factorization | 631 | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 |
Divisors count | 2 | 16 |
Divisors | 1, 631 | 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640 |
Number of properties | 6 | 0 |
Centered triangular primes | 7th | |
Chen primes | 80th | |
Cuban primes 1 | 10th | |
Isolated primes | 60th | |
Lucky primes | 32nd | |
Primes | 115th | |
Roman numberals | DCXXXI | DCXL |
Base 2 | 10011101112 | 10100000002 |
Base 3 | 2121013 | 2122013 |
Base 4 | 213134 | 220004 |
Base 5 | 100115 | 100305 |
Base 6 | 25316 | 25446 |
Base 7 | 15617 | 16037 |
Base 8 | 11678 | 12008 |
Base 9 | 7719 | 7819 |
Base 10 | 63110 | 64010 |
Base 11 | 52411 | 53211 |
Base 12 | 44712 | 45412 |
Base 13 | 39713 | 3a313 |
Base 14 | 33114 | 33a14 |
Base 15 | 2c115 | 2ca15 |
Base 16 | 27716 | 28016 |