138 (number)

← 137 139 → 138
← 130 131 132 133 134 135 136 137 138 139 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	one hundred [and] thirty-eight
Ordinal	138th (one hundred [and] thirty-eighth)
Factorization	$2 \cdot 3 \cdot 23$
Divisors	1, 2, 3, 6, 23, 46, 69, 138
Roman numeral	CXXXVIII
Binary	100010102
Octal	2128
Duodecimal	B612
Hexadecimal	8A16

138 (one hundred [and] thirty-eight) is the natural number following 137 but before 139.

In mathematics

• Its factorization makes 138 a sphenic number
• The sum of four consecutive primes (29 + 31 + 37 + 41)
• The smallest product of 3 primes, such that in base 10, the third prime is a concatenation of the other two
• The third 47-gonal number
• An Ulam number (Sloane's A002858)
• Bond number 138
• 1 step palindrome

In astronomy

• The number of constellations of the Triakis tetrahedron
• 138 Tolosa is a brightly colored, stony Main belt asteroid
• The New General Catalogue object NGC-138, a spiral galaxy in the constellation Pisces
• The Saros number of the solar eclipse series which began on June 6, 1472 and will end on July 11, 2716. The duration of Saros series 138 is 1244 years, and it contains 70 solar eclipses
• 138P/Shoemaker-Levy is a periodic comet in our solar system

In the military

• United States Air Force 138th Fighter Wing fighter unit stationed at Tulsa International Airport, Oklahoma
• USS Advocate (AM-138) was a United States naval ship, transferred to the Soviet Navy in 1943
• USS Braxton (APA-138) was a United States Navy Haskell-class attack transport during World War II
• USS Cheleb (AK-138) was a United States Navy Crater-class cargo ship during World War II
• USS Douglas L. Howard (DE-138) was a United States Navy destroyer escort during World War II
• USS General C. G. Morton (AP-138) was a United States Navy General G. O. Squier transport ship during World War II
• USS Kennison (DD-138) was the United States Navy Wickes class destroyer during World War II

In sports

• Essendon's losing margin against Adelaide in round 10 of the 2006 AFL season.
• The 138th Belmont Stakes was won by Jazil on June 10, 2006
• Arena football quarterback Donnie Davis had 138 touchdowns for the Georgia Force of the Arena Football League
• Keith Deller's 138 to clinch the 1983 BDO World Darts Championship trophy against Eric Bristow is amongst the most memorable in darting history. Bristow had left himself 50 to stay in the match, but decided to throw for single 18 to leave double 16 instead of a more difficult attempt at the bullseye. Deller then hit treble 20, treble 18, double 12. To this day commentators often refer to 138 as the "Deller checkout".

In transportation

• State Highway 138 is a state highway route in Wall Township, New Jersey
• M-138 is a state highway route in Michigan
• U.S. Route 138 is an east-west highway in Colorado and Nebraska
• Highway 138 provincial highway in Ontario, Canada
• Route 138 in Quebec, Canada
• N-138 is a highway in Spain which connects Estadilla to the French Border
• 138th Street–Grand Concourse, the Bronx station on the IRT Jerome Avenue Line of the New York City Subway
• Third Avenue–138th Street, the Bronx station on the IRT Pelham Line of the New York City Subway

In media

• The American band Misfits wrote a song entitled "We are 138"

In other fields

138 is also:

• The year AD 138 or 138 BC
• The atomic number of Untrioctium, a temporary chemical element
• City College of New York main address is at 138th Street & Convent Avenue, New York City
• Psalm 138
• Sonnet 138 by William Shakespeare
• Mongolia ranks #138 in world population
• The estimated number of ATP molecules produced by one molecule of fatty acid, for the mixture that comprises human adipose tissue.

See also

• List of highways numbered 138
• United Nations Security Council Resolution 138
• United States Supreme Court cases, Volume 138
• The Simpsons 138th Episode Spectacular

References

• 138 Constellations
• "We are 138". What does it mean?
• Urban Dictionary: 138