hex(x) is a built-in function in Python 3 to convert an integer number to a lowercase hexadecimal string prefixed with “0x”.

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

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

print(hex(16))    # prints  0x10
print(hex(-298))  # prints -0x12a
print(hex(543))   # prints  0x21f

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