39

39 (thirty-nine) is a positive integer following 38 and preceding 40. Its ordinal form is written "thirty-ninth" or 39th.
== Properties ==
39 is an .
In , 39 is described asDavid Wells. "The Penguin Book of Curious and Interesting Numbers: Revised Edition" Penguin Books 1998.
This appears to be the first uninteresting number, which of course makes it an especially interesting number, because it is the smallest number to have the property of being uninteresting. It is therefore also the first number to be simultaneously interesting and uninteresting.
== In googology ==
In Greek-based number-naming systems, 39 is associated with prefix "enneatriaconta-", and with prefix "novemtriginti-" in Latin systems.
== Sources ==
Category:Numbers
Category:Class 1
Category:Non-powers
Category:Numbers 0-99
Category:Numbers with 1 to 2 digits
Category:Odd numbers