689 in binary
689 in binary is 1010110001. In hexadecimal it is 2B1 and in octal 1261.
689 in binary
Pick any whole number from 1 to 10,000.
How to work it out
- 1
Divide 689 by 2 again and again, writing down the remainder each time, until you reach 0.
- 2
Read the remainders from the bottom up: 1010110001.
- 3
Check by adding powers of 2: 512 + 128 + 32 + 16 + 1 = 689.
LaTeX source of the formulas on this page
\[ 689_{10} = 1010110001_{2} \]Dividing 689 by 2
| Number | Division | Remainder |
|---|---|---|
| 689 | 689 ÷ 2 = 344 | 1 |
| 344 | 344 ÷ 2 = 172 | 0 |
| 172 | 172 ÷ 2 = 86 | 0 |
| 86 | 86 ÷ 2 = 43 | 0 |
| 43 | 43 ÷ 2 = 21 | 1 |
| 21 | 21 ÷ 2 = 10 | 1 |
| 10 | 10 ÷ 2 = 5 | 0 |
| 5 | 5 ÷ 2 = 2 | 1 |
| 2 | 2 ÷ 2 = 1 | 0 |
| 1 | 1 ÷ 2 = 0 | 1 |
Questions
What is 689 in binary?
1010110001.
What is 689 in hexadecimal?
2B1.
What is 689 in octal?
1261.
How many bits does 689 need?
10 bits.