521 in binary
521 in binary is 1000001001. In hexadecimal it is 209 and in octal 1011.
521 in binary
Pick any whole number from 1 to 10,000.
How to work it out
- 1
Divide 521 by 2 again and again, writing down the remainder each time, until you reach 0.
- 2
Read the remainders from the bottom up: 1000001001.
- 3
Check by adding powers of 2: 512 + 8 + 1 = 521.
LaTeX source of the formulas on this page
\[ 521_{10} = 1000001001_{2} \]Dividing 521 by 2
| Number | Division | Remainder |
|---|---|---|
| 521 | 521 ÷ 2 = 260 | 1 |
| 260 | 260 ÷ 2 = 130 | 0 |
| 130 | 130 ÷ 2 = 65 | 0 |
| 65 | 65 ÷ 2 = 32 | 1 |
| 32 | 32 ÷ 2 = 16 | 0 |
| 16 | 16 ÷ 2 = 8 | 0 |
| 8 | 8 ÷ 2 = 4 | 0 |
| 4 | 4 ÷ 2 = 2 | 0 |
| 2 | 2 ÷ 2 = 1 | 0 |
| 1 | 1 ÷ 2 = 0 | 1 |
Questions
What is 521 in binary?
1000001001.
What is 521 in hexadecimal?
209.
What is 521 in octal?
1011.
How many bits does 521 need?
10 bits.