in reply to convert to binary number

It is already a binary number. Decimal, octal and hexadecimal are ways to display binary numbers that are easier for humans to comprehend. As choroba mentioned you can use printf to format how the number gets displayed.

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Re^2: convert to binary number
by ikegami (Patriarch) on Jun 06, 2017 at 04:38 UTC

    No, it's not. It's a number, and the OP really does want to convert it to binary. Binary is a text representation of a number just like decimal, octal and hexadecimal.

      It's electrons caught in little bits of silicon, pretending to be bits, pretending to be numbers.

      I was surprised by your statement "No, it's not. It's a number, ...". You were responding to my assertion that the integer was already in binary and could be printed in different bases with printf. Yes, an integer is a number but that doesn't mean it is not stored as binary in memory. Are you referring to assigning a number to a scalar variable such as my $num = 42 ?

      According to perlnumber an integer is represented in Perl as a native integer according to the C compiler used to build Perl. Maybe I have assumed Perl is more like C than it really is. I was referring to how it is stored in memory and that you can use printf to display the value in other bases or even in binary.

      The OP was vague and didn't provide examples so I'm wondering how to know what the OP really wanted.

        You were responding to my assertion that the integer was already in binary and could be printed in different bases with printf.

        I was responding to your assertion that no conversion was required. I wasn't responding to your contradictory assertion that printf could perform the required conversion.