From the tutorial:
(coerce "99" 'int 16) => 153
???
Can't fathom how 99 could be written as 153 in any base from 2 to 36 ...
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(coerce "9a" 'int 16) => 154
(coerce 154 'string 16) => "9a"
(coerce 154 'string) => "154"