Python print number as binary

Let’s understand the “str.format()” method by the following example:

#conversion of int into binary using str.format() int_1 = 15 binary = "".format(int_1) print('conversion of int into binary is: ',binary) 

• The integer value named ”Int_1” is initialized.
• The “str.format()” function converts the “int_1” into a binary.
• The variable “int_1” is passed in the format() function parameter and inside the curly braces “<>”. The type “b” is used to specify the binary conversion, and “0” is used to place the variable at argument position 0.

The converted number is printed on the console.

Method 4: Using the f-string Function

Another built-in function named “f-string” is used to convert the integer value into the binary value. To convert integers to binary using “f-string”, we input the format code “b” inside the curly braces of the “f-string”.

Let’s understand the concept of the “f-string” by the following example:

# Convert into binary using f-strings int_1 = 522 int_2 = -23 binary_1 = f'' binary_2 = f'' print('Binary number of intger 1 is: ',binary_1) print('Binary number of intger 2 is: ',binary_2)

• Two variables named “int_1” and “int_2” are initialized.
• “f-string” method converts the number into binary by passing the “b” inside the curly braces with variable values.
• “f-string” formatting is used for string conversion mainly so the new binary value will be in string type.

In the above output, the positive and negative integer values have been converted into their respective binary numbers.

That’s all from this Python guide!

Conclusion

In Python, the “bin()” function, “format()” function, “f-string()”function, and “str.format()” method can convert Integer value into a binary value. The “bin()” function is the simplest among all others as it takes a variable value into its parameter and returns the output in binary. The “format()” and “str.format()” functions are very similar to each other; they can convert the value into binary by passing a format code. This post presented a deep overview of all the methods used to convert integer values into strings.

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Python print number as binary

Last updated: Jan 28, 2023
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# Table of Contents

# Print the binary representation of a Number in Python

Use a formatted string literal to print the binary representation of a number, e.g. print(f») .

Formatted string literals enable us to use the format specification mini-language which can be used to get the binary representation of a number.

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number = 13 # ✅ format number as binary (in base 2) string = f'number:b>' print(string) # 👉️ 1101 # ✅ Convert an integer to a binary string prefixed with 0b string = bin(number) print(string) # 👉️ 0b1101 # ✅ convert an integer to a lowercase hexadecimal string prefixed with 0x string = hex(number) print(string) # 👉️ 0xd 

Formatted string literals (f-strings) let us include expressions inside of a string by prefixing the string with f .

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var1 = 'bobby' var2 = 'hadz' result = f'var1>var2>' print(result) # 👉️ bobbyhadz 

Make sure to wrap expressions in curly braces — .

Formatted string literals also enable us to use the format specification mini-language in expression blocks.

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number = 13 string = f'number:b>' print(string) # 👉️ 1101 

The b character stands for binary format and outputs the number in base 2.

You can prefix the b character with a digit to specify the width of the string.

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number = 13 string = f'number:8b>' print(repr(string)) # 👉️ ' 1101' 

If you need to pad the number with zeros instead of spaces, add a zero after the colon.

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number = 13 string = f'number:08b>' print(repr(string)) # 👉️ '00001101' 

You can also prefix the result with 0b if necessary.

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number = 13 string = f'0bnumber:08b>' print(repr(string)) # 👉️ '0b00001101' 

# Print the binary representation of a Number using bin()

Alternatively, you can use the bin() function.

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number = 13 string = bin(number) print(string) # 👉️ 0b1101 print(bin(3)) # 👉️ 0b11 print(bin(10)) # 👉️ 0b1010 

The bin function converts an integer to a binary string prefixed with 0b .

You can also use a formatted string literal to add or remove the 0b prefix.

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number = 13 string = f'number:#b>' print(string) # 👉️ 0b1101 string = f'number:b>' print(string) # 👉️ 1101 

When used with integers, the # option adds the respective prefix to the binary, octal or hexadecimal output, e.g. 0b , 0o , 0x .

If you need to get the hexadecimal representation of a number, use the hex() function.

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number = 13 string = hex(number) print(string) # 👉️ 0xd 

The hex function converts an integer to a lowercase hexadecimal string prefixed with 0x .

# Convert the integer to an uppercase or lowercase hexadecimal string

You can also use a formatted string literal to convert an integer to an uppercase or lowercase hexadecimal string with or without the prefix.

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number = 13 string = f'number:#x>' print(string) # 👉️ 0xd string = f'number:x>' print(string) # 👉️ d string = f'number:X>' print(string) # 👉️ D 

The x character stands for hex format. It outputs the number in base 16 using lowercase letters for the digits above 9.

The X character does the same but uses uppercase letters for the digits above 9.

# Convert an integer to binary and keep leading zeros — Python

Use the format() function to convert an integer to binary and keep the leading zeros.

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integer = 27 # ✅ convert integer to binary keeping leading zeros (with 0b prefix) result = format(integer, '#08b') print(result) # 👉️ 0b011011 # ✅ without 0b prefix (length 6) result = format(integer, '06b') print(result) # 👉️ 011011 

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