Can you find the smallest number whose letters are in alphabetical order when spelled out in English?
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1$\begingroup$ I believe that this problem is very well known, please don't post them here. $\endgroup$– DuckOct 9, 2019 at 1:20
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$\begingroup$ Again I didn't know about this problem - only learned today. $\endgroup$– Dmitry KamenetskyOct 9, 2019 at 2:45
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1$\begingroup$ And the smallest number with REVERSE alphabetical order is ONE! $\endgroup$– DrDOct 10, 2019 at 8:48
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