144 (number)

← 143 145 → 144
← 140 141 142 143 144 145 146 147 148 149 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	one hundred [and] forty-four
Ordinal	144th (one hundred [and] forty-fourth)
Factorization	$2^4 \cdot 3^2$
Divisors	1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
Roman numeral	CXLIV
Binary	10010000₂
Octal	220₈
Duodecimal	100₁₂
Hexadecimal	90₁₆

144 is the natural number following 143 and preceding 145. 144 is a dozen dozens, or one gross.

1 In mathematics
2 In the military
3 In sports
4 In transportation
5 In TV and radio
6 In other fields
7 See also
8 External links
9 References

In mathematics

It is the twelfth Fibonacci number, and the largest one to also be a square,^[1] as the square of 12 (which is also its index in the Fibonacci sequence), following 89 and preceding 233.

144 is the smallest number with exactly 15 divisors.

144 is a number that is divisible by the value of its φ function, which returns 48 in this case. Also, there are 21 solutions to the equation φ(x) = 144, more than any integer below 144, making it a highly totient number.

$144^5 = 27^5 %2B 84^5 %2B 110^5 %2B 133^5$ , the smallest number whose fifth power is a sum of four (smaller) fifth powers. This solution was found in 1966 by L. J. Lander and T. R. Parkin, and disproved Euler's sum of powers conjecture.

The maximum determinant in a 9 by 9 matrix of zeroes and ones is 144.

144 is in base 10 a sum-product number, as well as a Harshad number.

In the military

USS Arch (AM-144) was a United States Navy Admirable minesweeper ship during World War II
USS Clinton (APA-144) was a United States Navy Haskell class attack transport ship during World War II
USS Frost (DE-144) was a United States Navy Edsall-class destroyer escort during World War II
USS General H. F. Hodges (AP-144) was a United States Navy General G. O. Squier transport ship during World War II
USS Mississinewa (AO-144) was a United States Navy Neosho-class fleet oiler commissioned in 1955
USS Upshur (DD-144) was a United States Navy Wickes class destroyer during World War I
USS Worcester (CL-144) was a United States Navy light cruiser following World War II

In sports

College Hoops Net (CHN) annual ranking of the Top 144 NCAA college basketball teams in 144 days
Milt Stegall, a receiver of the Winnipeg Blue Bombers holds the CFL record with 144 touchdowns
Warren Moon had 144 career touchdown passes in the CFL
As of 2009 there are 144 teams in Major professional sports leagues of the United States and Canada

In transportation

Highway 144 in Ontario, Canada
M-144 designation of two former state trunkline highways in Michigan
- M-44 (1936)
- M-44 (1940)
Federal Route 144 is a federal road in Melaka state, Malaysia
144 Auto Class ferries are proposed additions to the Washington State Ferries fleet
London Buses route 144 is a Transport for London contracted bus route in London
Sydney bus route 144 was the first government-operated bus route in Sydney, Australia
STS-144 was a proposed, now cancelled, Space Shuttle Columbia mission for November 2009 to retrieve the Hubble Space Telescope
British Rail Class 144Pacer diesel multiple diesels built in 1986
Tupolev Tu-144 was the first supersonic transport aircraft (SST), constructed under the direction of the Soviet Tupolev

In TV and radio

The TV series Here's Lucy ran on CBS from 1968 to 1974 with 144 episodes
The TV series A Different World ran on NBC from 1987 to 1993 with 144 episodes
Channel 144 on the Dish Network is EPSN2 HD
Channel 144 on XM Satellite Radio is Mad Dog Radio with Chris Russo
Channel 144 on Sirius Satellite Radio is SIRIUS Patriot, a conservative talk radio channel.

In other fields

144 is also:

The number of months in 12 years
The year AD 144 or 144 BC
144 AH is a year in the Islamic calendar that corresponds to 761 – 762 AD.
144 Vibilia is a dark, large Main belt asteroid
The measurement, in cubits, of the wall of New Jerusalem shown by the seventh angel (Holy Bible, Revelation 21:17)
The Intel 8086 instruction for no operation (NOP)
The telephone number for directory assistance in Israel
The emergency telephone number for medical emergencies in Austria^[2]
Psalm 144
Sonnet 144 by William Shakespeare
The London Street Commune movement at 144 Piccadilly, London in 1969
Rule 144A, of the U.S. Securities Act of 1933 deals with private resales of restricted securities
Form 144 (December 6, 2007), amends Rule 144 under the United States Securities Act of 1933 which regulates the resale of restricted securities and securities held by affiliates.
Section 144 of Bangladesh Code of Criminal Procedure prohibits assembly of five or more persons, public meetings, and carrying firearms
Lauryn Hill song “Final Hour” has the lyrics “I'm making sure I'm with the 144”
East 17 song Let It Rain has the lyrics “Tribes 144 on the mount”
Lesotho ranks #144 in world population
The atomic number of unquadquadium, a temporary chemical element
1:144 scale is a scale used for some scale models
The number of square inches in a square foot

External links

References

^ Bryan Bunch, The Kingdom of Infinite Number. New York: W. H. Freeman & Company (2000): 165
^ Porter, Darwin; Danforth Prince (2009). Frommer's Austria. Hoboken, New Jersey: Frommer's. p. 482. ISBN 978-0-470-39897-5.

Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 139 – 140