The folowing table expresses '189' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|
| 2 | 10111101 | 110 | 10 | 1 | ||||
| 3 | 21000 | 10 | 1 | |||||
| 4 | 2331 | 21 | 3 | |||||
| 5 | 1224 | 14,10 | 1 | |||||
| 6 | 513 | 13 | 4 | |||||
| 7 | 360 | 12 | 3 | |||||
| 8 | 275 | 16 | 7 | |||||
| 9 | 230 | 5 | ||||||
| 10 | 189 | 18 | 9 | |||||
| 11 | 162 | 9 | ||||||
| 12 | 139 | 11 | 2 | |||||
| 13 | 117 | 9 | ||||||
| 14 | D7,16 | 7 | ||||||
| 15 | C9,16 | 7 | ||||||
| 16 | BD,18 | 9 |
Factors: 33 * 7
189 is in the Pythagorean Triple: (189, 340, 389).