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Using different numbering systems/notations, "normal" decimal numeric expressions can be presented variously.

For example, my age (57) is represented in hexadecimal as "39"

However, once I'm 58, it would be "3A"

How are hex numbers pronounced? Is it proper (ethics aside) to say that (in hexadecimal) I'm "thirty-nine"? Or is it pronounced "three nine" or some other way?

And what about "3A" - would it be "thirty ten" or "three A" or...???

Of course, the same question applies to other numbering systems: octal, or one of your own derivation, etc.

marked as duplicate by FumbleFingers, Barmar, k1eran, sumelic, user140086 Jun 8 '16 at 1:45

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    You're "39 Hex" or "Three Aay hex" etc. or you could be Zero Ex Three Aay ;-) – Jim Jun 7 '16 at 16:52
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    There are no absolute rules in play here. Over the years I've often heard / said things like A space character is twenty in hex. But it's a potentially confusing usage, so reading out the digits (two zero) is probably better. I certainly don't think I'd ever say A space is ten thousand one hundred in binary. Have a look at this reddit post. – FumbleFingers Jun 7 '16 at 16:54
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    So the rule seems to be simple Arabic numerals + (in) + whatever system you're using? – GoldenGremlin Jun 7 '16 at 16:56
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    Hex in my experience, either way back in the EBCDIC era or for MAC addresses was expressed in pairs or as a series of pairs, for example "three ay, six eff (hex)". The addition of "hex" would have been made if thought necessary. For example, one would not bother when giving a MAC address. Octal was expressed in triplets as "one twenty seven octal". But with octal, I would always say "octal", presumably because of the ambiguity. – Al Maki Jun 7 '16 at 17:50
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    It might be pronounced "three able", if a phonetic alphabet is being used. – Hot Licks Jun 7 '16 at 18:09
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I have never pronounced hexadecimal numbers in any way other than digit-by-digit, with numerals and letters pronounced as numerals and letters. If context had not been established, I always preceded the recitation with the word "hex."

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