Compare 30 vs 40
| Property | 30 | 40 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 3 | 4 |
| Prime factorization | 21 × 31 × 51 | 23 × 51 |
| Prime factorization | 2 × 3 × 5 | 2 × 2 × 2 × 5 |
| Divisors count | 8 | 8 |
| Divisors | 1, 2, 3, 5, 6, 10, 15, 30 | 1, 2, 4, 5, 8, 10, 20, 40 |
| Number of properties | 0 | 0 |
| Roman numberals | XXX | XL |
| Base 2 | 111102 | 1010002 |
| Base 3 | 10103 | 11113 |
| Base 4 | 1324 | 2204 |
| Base 5 | 1105 | 1305 |
| Base 6 | 506 | 1046 |
| Base 7 | 427 | 557 |
| Base 8 | 368 | 508 |
| Base 9 | 339 | 449 |
| Base 10 | 3010 | 4010 |
| Base 11 | 2811 | 3711 |
| Base 12 | 2612 | 3412 |
| Base 13 | 2413 | 3113 |
| Base 14 | 2214 | 2c14 |
| Base 15 | 2015 | 2a15 |
| Base 16 | 1e16 | 2816 |