Compare 661251 vs 661253
| Property | 661251 | 661253 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 2271 × 9711 | 6612531 |
| Prime factorization | 3 × 227 × 971 | 661253 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 227, 681, 971, 2913, 220417, 661251 | 1, 661253 |
| Number of properties | 0 | 5 |
| Additive primes | 20952nd | |
| Isolated primes | 42086th | |
| Primes | 53669th | |
| Sexy primes (1st member) | 11589th | |
| Sophie germain primes | 5455th | |
| Roman numberals | ||
| Base 2 | 101000010111000000112 | 101000010111000001012 |
| Base 3 | 10201210012103 | 10201210012123 |
| Base 4 | 22011300034 | 22011300114 |
| Base 5 | 1321300015 | 1321300035 |
| Base 6 | 221012036 | 221012056 |
| Base 7 | 54225637 | 54225657 |
| Base 8 | 24134038 | 24134058 |
| Base 9 | 12170539 | 12170559 |
| Base 10 | 66125110 | 66125310 |
| Base 11 | 41189811 | 41189a11 |
| Base 12 | 27a80312 | 27a80512 |
| Base 13 | 1a1c9613 | 1a1c9813 |
| Base 14 | 132da314 | 132da514 |
| Base 15 | d0dd615 | d0dd815 |
| Base 16 | a170316 | a170516 |