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Article: Python Hex Function #1033

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Article: Python Hex Function #1033

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# Python hex(x)

`hex(x)` is a built-in function in Python 3 to convert an integer number to a lowercase [hexadecimal](https://www.mathsisfun.com/hexadecimals.html) string prefixed with “0x”.

## Argument

This function takes one argument, `x`, that should be of integer type.

## Return

This function returns a lowercase hexadecimal string prefixed with "0x".

## Example

```python
print hex(16) # prints 0x10
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Getting this on REPL

Traceback (most recent call last):
  File "python", line 1
    print hex(16)
            ^
SyntaxError: invalid syntax

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You are using Python 2 print syntax, use print()

print hex(-298) # prints -0x12a
print hex(543) # prints 0x21f
```

:rocket: [Run Code](https://repl.it/CVCR)

[Official Documentation](https://docs.python.org/3/library/functions.html#hex)