500 in binary = 111110100 (1 1111 0100)
In other bases: hexadecimal 1F4, octal 764. The binary number has 9 bits.
Divide by 2 repeatedly and note each remainder. Read the remainders from bottom to top.
| Division | Quotient | Remainder |
|---|---|---|
| 500 ÷ 2 | 250 | 0 |
| 250 ÷ 2 | 125 | 0 |
| 125 ÷ 2 | 62 | 1 |
| 62 ÷ 2 | 31 | 0 |
| 31 ÷ 2 | 15 | 1 |
| 15 ÷ 2 | 7 | 1 |
| 7 ÷ 2 | 3 | 1 |
| 3 ÷ 2 | 1 | 1 |
| 1 ÷ 2 | 0 | 1 |
Remainders bottom to top: 111110100.
| Power of 2 | 256 | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| Bit | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 |
Add the powers of 2 where the bit is 1: 256 + 128 + 64 + 32 + 16 + 4 = 500.
Need another number or the reverse direction? Use the binary to decimal converter or the text to binary converter.
| Decimal | Binary | Hex | Octal |
|---|---|---|---|
| 350 | 101011110 | 15E | 536 |
| 365 | 101101101 | 16D | 555 |
| 400 | 110010000 | 190 | 620 |
| 450 | 111000010 | 1C2 | 702 |
| 512 | 1000000000 | 200 | 1000 |
| 550 | 1000100110 | 226 | 1046 |
| 600 | 1001011000 | 258 | 1130 |
| 640 | 1010000000 | 280 | 1200 |