23 is Largest Integer not Sum of Distinct Perfect Powers/Mistake

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Source Work

1986: David Wells: Curious and Interesting Numbers:

The Dictionary
$23$


1997: David Wells: Curious and Interesting Numbers (2nd ed.):

The Dictionary
$23$


Mistake

$23$ is the largest integer that is not the sum of distinct powers.


Correction

This statement is refuted by:

$23 = 2^4 + 2^2 + 2^1 + 2^0$

What in fact is meant is:

$23$ is the largest integer that is not the sum of distinct perfect powers.


Sources