70

70 (seventy) is a positive integer following 69 and preceding 71. Its ordinal form is written "seventieth" or 70th.
== Properties ==
*70 is an .
*69! < googol < 70!. Many scientific calculators overflow at googol, so 70! is the least factorial number that cannot be stored on such calculators.
*70 is the smallest . That means it is but not .
== In googology ==
*In Greek-based number-naming systems, 70 is associated with prefix "heptaconta-", and with prefix "septuaginti-" in Latin systems.
*Nirvana Supermind coined zero-septenol for this number, and is equal to Q<10,7> using quick array notation.Numbers from quick array notation - Integral View (retrieved 2021-06-21)
==Sources==
Category:Numbers
Category:Class 1
Category:Non-powers
Category:Numbers 0-99
Category:Numbers with 1 to 2 digits