Compare 664654 vs 664661
| Property | 664654 | 664661 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 231 × 144491 | 6646611 |
| Prime factorization | 2 × 23 × 14449 | 664661 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 23, 46, 14449, 28898, 332327, 664654 | 1, 664661 |
| Number of properties | 0 | 7 |
| Additive primes | 21046th | |
| Chen primes | 21090th | |
| Primes | 53920th | |
| Prime quadruplets (1st member) | 129th | |
| Prime triplets (1st member) | 2120th | |
| Sexy primes (1st member) | 11637th | |
| Twin primes (1st member) | 5821st | |
| Roman numberals | ||
| Base 2 | 101000100100010011102 | 101000100100010101012 |
| Base 3 | 10202022012113 | 10202022020023 |
| Base 4 | 22021010324 | 22021011114 |
| Base 5 | 1322321045 | 1322321215 |
| Base 6 | 221250346 | 221250456 |
| Base 7 | 54355247 | 54355347 |
| Base 8 | 24221168 | 24221258 |
| Base 9 | 12226549 | 12226629 |
| Base 10 | 66465410 | 66466110 |
| Base 11 | 41440111 | 41440811 |
| Base 12 | 28077a12 | 28078512 |
| Base 13 | 1a36b313 | 1a36ba13 |
| Base 14 | 13431414 | 13431b14 |
| Base 15 | d1e0415 | d1e0b15 |
| Base 16 | a244e16 | a245516 |