Can spotlight do Int > Hex conversion ? Spotlight is great to do some fast calculation and conversions. 

But can he also do some geeky conversions like Integers &lt;> Hexadecimals or Integers &lt;> Binary ?
I use Alfred for the Mac -- one of the most used tools I have. https://www.alfredapp.com

You will need the PowerPack for workflows. As a user I would recommend the lifetime update option. It keeps getting better and better.

There is an Alfred workflow created: https://github.com/obstschale/NSC/ that easily does number format conversion.