71 in binary = 1000111 (100 0111)
In other bases: hexadecimal 47, octal 107. The binary number has 7 bits.
Divide by 2 repeatedly and note each remainder. Read the remainders from bottom to top.
| Division | Quotient | Remainder |
|---|---|---|
| 71 ÷ 2 | 35 | 1 |
| 35 ÷ 2 | 17 | 1 |
| 17 ÷ 2 | 8 | 1 |
| 8 ÷ 2 | 4 | 0 |
| 4 ÷ 2 | 2 | 0 |
| 2 ÷ 2 | 1 | 0 |
| 1 ÷ 2 | 0 | 1 |
Remainders bottom to top: 1000111.
| Power of 2 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
| Bit | 1 | 0 | 0 | 0 | 1 | 1 | 1 |
Add the powers of 2 where the bit is 1: 64 + 4 + 2 + 1 = 71.
Need another number or the reverse direction? Use the binary to decimal converter or the text to binary converter.
| Decimal | Binary | Hex | Octal |
|---|---|---|---|
| 67 | 1000011 | 43 | 103 |
| 68 | 1000100 | 44 | 104 |
| 69 | 1000101 | 45 | 105 |
| 70 | 1000110 | 46 | 106 |
| 72 | 1001000 | 48 | 110 |
| 73 | 1001001 | 49 | 111 |
| 74 | 1001010 | 4A | 112 |
| 75 | 1001011 | 4B | 113 |