1021 in binary
1021 in binary is 1111111101. In hexadecimal it is 3FD and in octal 1775.
1021 in binary
Pick any whole number from 1 to 10,000.
How to work it out
- 1
Divide 1021 by 2 again and again, writing down the remainder each time, until you reach 0.
- 2
Read the remainders from the bottom up: 1111111101.
- 3
Check by adding powers of 2: 512 + 256 + 128 + 64 + 32 + 16 + 8 + 4 + 1 = 1021.
LaTeX source of the formulas on this page
\[ 1021_{10} = 1111111101_{2} \]Dividing 1021 by 2
| Number | Division | Remainder |
|---|---|---|
| 1021 | 1021 ÷ 2 = 510 | 1 |
| 510 | 510 ÷ 2 = 255 | 0 |
| 255 | 255 ÷ 2 = 127 | 1 |
| 127 | 127 ÷ 2 = 63 | 1 |
| 63 | 63 ÷ 2 = 31 | 1 |
| 31 | 31 ÷ 2 = 15 | 1 |
| 15 | 15 ÷ 2 = 7 | 1 |
| 7 | 7 ÷ 2 = 3 | 1 |
| 3 | 3 ÷ 2 = 1 | 1 |
| 1 | 1 ÷ 2 = 0 | 1 |
Questions
What is 1021 in binary?
1111111101.
What is 1021 in hexadecimal?
3FD.
What is 1021 in octal?
1775.
How many bits does 1021 need?
10 bits.