189 in binary = 10111101 (1011 1101)
In other bases: hexadecimal BD, octal 275. The binary number has 8 bits.
Divide by 2 repeatedly and note each remainder. Read the remainders from bottom to top.
| Division | Quotient | Remainder |
|---|---|---|
| 189 ÷ 2 | 94 | 1 |
| 94 ÷ 2 | 47 | 0 |
| 47 ÷ 2 | 23 | 1 |
| 23 ÷ 2 | 11 | 1 |
| 11 ÷ 2 | 5 | 1 |
| 5 ÷ 2 | 2 | 1 |
| 2 ÷ 2 | 1 | 0 |
| 1 ÷ 2 | 0 | 1 |
Remainders bottom to top: 10111101.
| Power of 2 | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|
| Bit | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 |
Add the powers of 2 where the bit is 1: 128 + 32 + 16 + 8 + 4 + 1 = 189.
Need another number or the reverse direction? Use the binary to decimal converter or the text to binary converter.
| Decimal | Binary | Hex | Octal |
|---|---|---|---|
| 185 | 10111001 | B9 | 271 |
| 186 | 10111010 | BA | 272 |
| 187 | 10111011 | BB | 273 |
| 188 | 10111100 | BC | 274 |
| 190 | 10111110 | BE | 276 |
| 191 | 10111111 | BF | 277 |
| 192 | 11000000 | C0 | 300 |
| 193 | 11000001 | C1 | 301 |