18 in Binary
18 in binary is 10010. Unlike the decimal number system where we use the digits 0 to 9 to represent a number, in a binary system, we use only 2 digits that are 0 and 1 (bits). We have used 5 bits to represent 18 in binary. In this article, let us learn how to convert the decimal number 18 to binary.
How to Convert 18 in Binary?
Step 1: Divide 18 by 2. Use the integer quotient obtained in this step as the dividend for the next step. Repeat the process until the quotient becomes 0.
| Dividend | Remainder |
|---|---|
| 18/2 = 9 | 0 |
| 9/2 = 4 | 1 |
| 4/2 = 2 | 0 |
| 2/2 = 1 | 0 |
| 1/2 = 0 | 1 |
Step 2: Write the remainder from bottom to top i.e. in the reverse chronological order. This will give the binary equivalent of 18.
Therefore, the binary equivalent of decimal number 18 is 10010.
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Let us have a look at the value of the decimal number 18 in the different number systems.
- 18 in Binary: 18₁₀ = 10010₂
- 18 in Octal: 18₁₀ = 22₈
- 18 in Hexadecimal: 18₁₀ = 12₁₆
- 10010₂ in Decimal: 18₁₀
Problem Statements:
| What is 18 in Binary? - (Base 2) | (10010)₂ |
| What is 18 in Hexadecimal? - (Base 16) | (12)₁₆ |
| What is 18 in Octal? - (Base 8) | (22)₈ |
| Square Root of 18 | 4.242641 |
| Is 18 a Composite Number? | Yes |
| Cube Root of 18 | 2.620741 |
| Is 18 a Perfect Square? | No |
| Is 18 a Prime Number? | No |
| Is 18 a Perfect Cube? | No |
FAQs on 18 in Binary
What is 18 in Binary?
18 in binary is 10010. To find decimal to binary equivalent, divide 18 successively by 2 until the quotient becomes 0. The binary equivalent can be obtained by writing the remainder in each division step from the bottom to the top.
What is the Binary Equivalent of 18 + 19?
18 in binary number system is 10010 and 19 is 10011. We can add the binary equivalent of 18 and 19 using binary addition rules [0 + 0 = 0, 0 + 1 = 1, 1 + 1 = 10 note that 1 is a carry over to the next bit]. Therefore, (10010)₂ + (10011)₂ = (100101)₂ which is nothing but 37.
☛ Binary to Decimal Calculator
How Many Bits Does 18 in Binary Have?
We can count the number of zeros and ones to see how many bits are used to represent 18 in binary i.e. 10010. Therefore, we have used 5 bits to represent 18 in binary.
Find the Value of 3 × 18 in Binary Form.
We know that 18 in binary is 10010 and 3 is 11. Using the binary multiplication rules (0 × 0 = 0; 0 × 1 = 0 ; 1 × 0 = 0 and 1 × 1 = 1), we can multiply 10010 × 11 = 110110 which is 54 in the decimal number system. [18 × 3 = 54]
How to Convert 18 to Binary Equivalent?
We can divide 18 by 2 and continue the division till we get 0. Note down the remainder in each step.
- 18 mod 2 = 0 - LSB (Least Significant Bit)
- 9 mod 2 = 1
- 4 mod 2 = 0
- 2 mod 2 = 0
- 1 mod 2 = 1 - MSB (Most Significant Bit)
Write the remainders from MSB to LSB. Therefore, the decimal number 18 in binary can be represented as 10010.
☛ Also Check:
- 55 in Binary - 110111
- 37 in Binary - 100101
- 162 in Binary - 10100010
- 112 in Binary - 1110000
- 95 in Binary - 1011111
- 70 in Binary - 1000110
- 375 in Binary - 101110111