102 (number)

102 (one hundred [and] two) is the natural number following 101 and preceding 103.

In mathematics

102 is an abundant number and semiperfect number. It is a sphenic number. It is the sum of four consecutive prime numbers (19 + 23 + 29 + 31).

The sum of Euler's totient function φ(x) over the first eighteen integers is 102.

102 is the third base 10 polydivisible number, since 1 is divisible by 1, 10 is divisible by 2 and 102 is divisible by 3. This also shows that 102 is a Harshad number.

In science

• The atomic number of nobelium, an actinide.

In astronomy,

Messier object M102, possibly the Spindle Galaxy, a magnitude 10.5 spiral galaxy in the constellation Draco

The New General Catalogue object NGC102, a galaxy in the constellation Cetus

Asteroid 102 Miriam

The Saros number of the solar eclipse series which began on 376 May 5 and ended on 1638 June 12. The duration of Saros series 102 was 1262.1 years, and it contained 71 solar eclipses.

The Saros number of the lunar eclipse series which began on 461 October 5 and ended on 1958 April 4. The duration of Saros series 102 was 1496.5 years, and it contained 84 lunar eclipses.

In other fields

102 is also:

• The year AD 102 or 102 BC
• SEPTA Routes 101 and 102 are two tram lines operated by the Southeastern Pennsylvania Transportation Authority (SEPTA)
• A London bus route running from Edmonton to Golders Green calling at Bounds Green and Muswell Hill
• The emergency telephone number for fire in Israel
• The 2000 live-action movie 102 Dalmatians, starring Glenn Close
• STS-102 Space Shuttle Discovery mission launched March 8, 2001
• Channel 102 is a monthly live screening of 5-minute TV shows in New York City
• Radio stations such as 102.5 KSFM, Sacramento, CA and Fresh 102.7 WWFS, New York City
• The Orbiter Vehicle Designation for Shuttle Columbia
• The Empire State Building in New York City has 102 floors
• The 102nd United States Congress met from January 3, 1991 to January 3, 1993, during the last two years of the President George H. W. Bush administration
• The One Hundred and Two River is a tributary of the Platte River of Missouri
• Highway 102 is a highway in the Thunder Bay District of Ontario, Canada
• Life 102: What to Do When Your Guru Sues You is a book written by Peter McWilliams in 1994
• The Symphony No. 102 in B flat major (Hoboken 1/102) is the tenth of the twelve so-called London Symphonies written by Joseph Haydn
• The Judds song "One Hundred And Two" from 1991
• The Model 102 telephone was Western Electric's first widely distributed telephone set to feature the transmitter and receiver in a common handset in 1927
• The 102nd Infantry Division was a unit of the United States Army in World War II from 1942 to 1946

In sports

• The Minnesota Twins best regular season record was 102-60 in 1965, and their worst regular season record: 60-102 in 1982
• Former San Francisco 49ers coach Bill Walsh retired after the 1988 season with 102 wins in 10 years
• Lotus 102 was a Formula One racing car in the 1990 Formula One season
• The 2006 World Series between the Detroit Tigers and the St. Louis Cardinals was the 102nd Fall Classic

See also

• List of highways numbered 102

References

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133ca:Cent dos

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