108 (number)
From Wikipedia, the free encyclopedia
108 is the natural number following 107 and preceding 109.
| Cardinal | one hundred [and] eight |
| Ordinal | 108th |
| Factorization |  |
| Divisors | 2, 3, 4, 6, 9, 12, 18, 27, 36, 54 |
| Roman numeral | CVIII |
| Binary | 1101100 |
| Hexadecimal | 6C |
[edit] In mathematics
One hundred [and] eight is an abundant number and a semiperfect number. It is a tetranacci number.
It is the hyperfactorial of 3 since it is of the form 
.
108 is a number that is divisible by the value of its φ function, which is 36. 108 is also divisible by the total number of its divisors (12), hence it is a refactorable number.
In normal space, the interior angles of an equilateral pentagon measure 108 degrees each.
There are 108 free polyominoes of order 7.
In base 10, it is a Harshad number and a self number.
[edit] In other fields
One hundred [and] eight is also:
- sacred in Hinduism, Buddhism and other religions native to India:
- A mala (rosary) usually has beads for 108 repetitions of a mantra.
- Hindu deities have 108 names. Recital of these names, often accompanied by counting of 108-beaded Mala, is considered sacred and often done during religious ceremonies. The recital is called namajapa.
- It is described in the Srimad Bhagavatam that Krishna dances with 108 'Gopis' (cow-herd girls) in His Vrindavan pastimes, and later marries 16,108 wives in His city of Dwarka. Hare Krishna devotees thus hold 108 as a number of great significance.
- Siva Nataraja dances his cosmic dance in 108 poses.
- The number of sins in Tibetan Buddhism. In Japan, at the end of the year, a bell is chimed 108 times to finish the old year and welcome the new one. Each ring represents one of 108 earthly temptations a person must overcome to achieve nirvana.
- The atomic number of hassium.
- Ben Turpin's schtick for taking a fall similar to Chevy Chase.
- In Homer's Odyssey, the number of suitors coveting Penelope, wife of Odysseus.
- Chinese astrology and Tao philosophy 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 represents a star in Chinese astrology).
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- 108 Stars is also the name of a group of space pirates who use Tao magic in the anime Outlaw Star.
- Several different Taijiquan long forms consist of 108 moves.
- The number of surat al-Kawthar in the Qur'an, the smallest one of the Book.
- The year AD 108 or 108 BC.
- The number of stitches on a baseball.
- A Hare Krishna, or 'krishnacore' hardcore punk band '108'. [1]
- A central number in the television drama Lost.
- The number of minutes that cosmonaut Yuri Gagarin orbited the earth during the first manned space flight.
- The number of "missing" episodes of the BBC television program Doctor Who, destroyed in the 1970s.
- The number of Mbit/s of a non-standard extension of IEEE 802.11g wireless network using channel bonding.
- 108 is a community of and for open source developers, created by Red Hat.
[edit] External links
- Why 108? Article on the symbolism of the number 108.
- Would YOU press that button? A LOST clock simulator that counts down from 108 minutes.
