-7
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This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.

If a number conforms to a special rule, I call it a Rotatable Number.

Use the following examples below to find the rule.

Example

If needed, a CSV version is available below.

ROTATABLE NUMBERS™,NON-ROTATABLE NUMBERS™
26,25
52,46
78,66
104,98
130,137
156,172
182,180
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  • $\begingroup$ I'm not sure why this is downvoted. It seems like a good puzzle. Why the downvotes? $\endgroup$ – clickbait Feb 14 '17 at 3:27
  • $\begingroup$ @clickbait i think it's because they can't accept until 5 min later and then they never came back and accepted. $\endgroup$ – Sensoray Mar 19 at 12:36
8
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They're

multiples of 26, meaning under the ROT-$n$ cipher, any text will stay the same.

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  • $\begingroup$ I noticed the pattern, but I think you've got the correct reason $\endgroup$ – Angzuril Nov 4 '16 at 20:16
  • 9
    $\begingroup$ It's very well past 5 minutes. $\endgroup$ – greenturtle3141 Nov 5 '16 at 18:00
  • 3
    $\begingroup$ It's been 4 months. $\endgroup$ – haykam Feb 21 '17 at 1:51
  • 2
    $\begingroup$ ... 15 months later ... $\endgroup$ – A. P. Feb 12 '18 at 21:48
  • 1
    $\begingroup$ I think this person forgot or something $\endgroup$ – North Feb 13 '18 at 1:09
6
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Quick Answer

They are

A multiple of 26

And they are called rotatable because

I have no idea

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  • $\begingroup$ Because you can rotate the alphabet modulo 26? $\endgroup$ – Gabriel Burns Nov 4 '16 at 20:16

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