108 (number)

108 is the natural number following 107 and preceding 109.

In mathematics

One hundred eight is an abundant number, a tetranacci number and a Harshad number. It is the hyperfactorial of 3. 108 is a number that is divisible by the value of its φ function, which is 36.

In normal space, the interior angles of an equilateral pentagon measure 108 degrees each.

In other fields

One hundred eight is also:

• The atomic number of hassium.
• In Homer's Odyssey, the number of suitors coveting Penelope, wife of Odysseus.
• Chinese astrology holds that there are 108 sacred stars. (This legend is the basis of the Suikoden series of video games: each of the 108 playable characters is a representation of a star in Chinese astrology.)
• Several different tai chi long forms consist of 108 moves.
• A Mala (Sanskrit word for prayer beads) usually has beads for 108 repetitions of a mantra)
• The year AD 108 or 108 BC.

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