Compare 631 vs 639
Property | 631 | 639 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 2 |
Total factors | 1 | 3 |
Prime factorization | 6311 | 32 × 711 |
Prime factorization | 631 | 3 × 3 × 71 |
Divisors count | 2 | 6 |
Divisors | 1, 631 | 1, 3, 9, 71, 213, 639 |
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 | DCXXXIX |
Base 2 | 10011101112 | 10011111112 |
Base 3 | 2121013 | 2122003 |
Base 4 | 213134 | 213334 |
Base 5 | 100115 | 100245 |
Base 6 | 25316 | 25436 |
Base 7 | 15617 | 16027 |
Base 8 | 11678 | 11778 |
Base 9 | 7719 | 7809 |
Base 10 | 63110 | 63910 |
Base 11 | 52411 | 53111 |
Base 12 | 44712 | 45312 |
Base 13 | 39713 | 3a213 |
Base 14 | 33114 | 33914 |
Base 15 | 2c115 | 2c915 |
Base 16 | 27716 | 27f16 |