89 (eighty-nine) is a positive integer following 88 and preceding 90. Its ordinal form is written "eighty-ninth" or 89th.

Properties

89.gif


In googology

In Greek-based number-naming systems, 89 is associated with prefix "enneaoctaconta-", and with prefix "novemoctoginti-" in Latin systems.

Sources

  1. MathWorld, Mersenne Prime
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