Number 11
Number 11 is said 🔊, write in letters as follows: eleven . Ordinal number 11th is said 🔊 and write: eleventh. The meaning of number 11: Basic maths, advanced mathematics and properties, computer science, numerology, codes and images, writing and naming in other languages, other interesting facts and comments. Number 11 in News.
Useful information about number 11
The decimal (Arabic) number 11 converted to a Roman number is XI.
Roman and decimal number conversions.
11 kilograms (kg) = 24.3 pounds (lb)
11 pounds (lb) = 5.0 kilograms (kg)
11 kilometers (km) equals to 6.835 miles (mi).
11 miles (mi) equals to 17.703 kilometers (km).
11 meters (m) equals to 17.703 feet (ft).
11 feet (ft) equals 3.353 meters (m).
11 centimeters (cm) equals to 4.3 inches (in).
11 inches (in) equals to 27.9 centimeters (cm).
11° Fahrenheit (°F) equals to 51.8° Celsius (°C)
11° Celsius (°C) equals to 11.7° Fahrenheit (°F)
11 Horsepower (hp) equals to 8.09 kilowatts (kW)
11 kilowatts (kW) equals to 14.96 horsepower (hp)
The number 11 converted to a Mayan number is  
Decimal and Mayan number conversions. 
Weight conversion
11 kilograms (kg) = 24.3 pounds (lb)
11 pounds (lb) = 5.0 kilograms (kg)
Length conversion
11 kilometers (km) equals to 6.835 miles (mi).
11 miles (mi) equals to 17.703 kilometers (km).
11 meters (m) equals to 17.703 feet (ft).
11 feet (ft) equals 3.353 meters (m).
11 centimeters (cm) equals to 4.3 inches (in).
11 inches (in) equals to 27.9 centimeters (cm).
Temperature conversion
11° Fahrenheit (°F) equals to 51.8° Celsius (°C)
11° Celsius (°C) equals to 11.7° Fahrenheit (°F)
Power conversion
11 Horsepower (hp) equals to 8.09 kilowatts (kW)
11 kilowatts (kW) equals to 14.96 horsepower (hp)
Codes and images of the number 11
Number 11 morse code: . .Sign language for number 11:
Images of the number  
Image (1) of the number  Image (2) of the number 
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Number 11 infographic.

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Gregorian, Hebrew, Islamic, Persian and Buddhist year (calendar)
Gregorian year 11 is Buddhist year 554.Buddhist year 11 is Gregorian year 532 a. C.
Gregorian year 11 is Islamic year 630 or 629.
Islamic year 11 is Gregorian year 632 or 633.
Gregorian year 11 is Persian year 612 or 611.
Persian year 11 is Gregorian 632 or 633.
Gregorian year 11 is Hebrew year 3771 or 3772.
Hebrew year 11 is Gregorian year 3749 a. C.
The Buddhist calendar is used in Sri Lanka, Cambodia, Laos, Thailand, and Burma. The Persian calendar is official in Iran and Afghanistan.
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Mathematics of no. 11
Multiplications
Multiplication table of 11
11 multiplied by two equals 22 (11 x 2 = 22).
11 multiplied by three equals 33 (11 x 3 = 33).
11 multiplied by four equals 44 (11 x 4 = 44).
11 multiplied by five equals 55 (11 x 5 = 55).
show multiplications by 6, 7, 8, 9 ...
Fractions: decimal fraction and common fraction
Fraction table of 11
Half of 11 is 5,5 (11 / 2 = 5,5 = 5 1/2).
One third of 11 is 3,6667 (11 / 3 = 3,6667 = 3 2/3).
One quarter of 11 is 2,75 (11 / 4 = 2,75 = 2 3/4).
One fifth of 11 is 2,2 (11 / 5 = 2,2 = 2 1/5).
show fractions by 6, 7, 8, 9 ...
Calculator
11  
Advanced math operations
Is Prime?
The number 11 is a prime number. The closest prime numbers are 7, 13.
11th prime number in order is 31.
Factorization and dividers
Factorization 11 = 11
Divisors of number 11 are 1 , 11
Total Divisors 2.
Sum of Divisors 12.
Powers
The second power of 11^{2} is 121.
The third power of 11^{3} is 1.331.
Roots
The square root √11 is 3,316625.
The cube root of ^{3}√11 is 2,22398.
Logarithms
The natural logarithm of No. ln 11 = log_{e} 11 = 2,397895.
The logarithm to base 10 of No. log_{10} 11 = 1,041393.
The Napierian logarithm of No. log_{1/e} 11 = 2,397895.
Trigonometric functions
The cosine of 11 is 0,004426.The sine of 11 is 0,99999.
The tangent of 11 is 225,950846.
Properties of the number 11
Is a Friedman number: NoIs a Fibonacci number: No
Is a Bell number: No
Is a palindromic number: No
Is a pentagonal number: No
Is a perfect number: No
Number 11 in Computer Science
Code type  Code value 

Port 11/TCP, UDP  SYSTAT protocol 
Unix time  Unix time 11 is equal to Thursday Jan. 1, 1970, 12:11 a.m. GMT 
IPv4, IPv6  Number 11 internet address in dotted format v4 0.0.0.11, v6 ::b 
11 Binary  = 3 Decimal 
11 Decimal  = 1011 Binary 
11 Decimal  = 102 Ternary 
11 Decimal  = 13 Octal 
11 Decimal  = B Hexadecimal (0xb hex) 
11 BASE64  MTE= 
11 MD5  6512bd43d9caa6e02c990b0a82652dca 
11 SHA1  17ba0791499db908433b80f37c5fbc89b870084b 
More SHA codes related to the number 11 ... 
Numerology 11
The meaning of the number 1 (one), numerology 1
Character frequency 1: 2
Number one (1) came to develop or balance creativity, independence, originality, selfreliance and confidence in the world. It reflects power, creative strength, quick mind, drive and ambition. It is the sign of individualistic and aggressive nature.
More about the meaning of the number 1 (one), numerology 1 ...
Interesting facts about the number 11
Asteroids
 (11) Parthenope is asteroid number 11. It was discovered by A. de Gasparis from Obs. Capodimonte Astronomical on 5/11/1850.
Aircrafts and flights
 09/11/2001 the American Airlines plane, flight number 11, Boeing 767223ER crashed in New York City, US 81 passengers and 11 crew members died.
 11/27/1983 the Avianca plane, flight number 011, Boeing 747283B crashed in Madrid, Spain 162 passengers and 19 crew members died.
Areas, mountains and surfaces
 The total area of Sulawesi is 69,761 square miles (180,681 square km). Country Indonesia (Gorontalo and Central, North, South, Southeast and West Sulawesi). 11th largest island in the world.
Astrology
 It is one of the lucky numbers for the zodiac sign Taurus and Pisces.
 ¿Qué es la astrología y para qué sirve?
History and politics
 11 Downing Street The address of the UK Chancellor of the Treasury's London residence.
In other fields
 September 11 is La Diada Nacional de Catalunya or Diada.
 The attacks of September 11, 2001 (commonly referred to as 9/11 or 9/11) were a series of suicide terrorist attacks committed that day in the United States.
 The attacks of March 11, 2004, known by the number 11M, were a series of terrorist attacks on four trains of the Madrid Cercanías network.
 If you dream of the number 11 you should keep in mind that it symbolizes that the universe will help you face trials.
Mathematics
 11 is the largest known multiplicative persistence.
Music
 '11: 11 'is a song by the CanadianAmerican singer Rufus Wainwright or the South Korean singer Taeyeon.
 '11' is a song by the American singersongwriter Cassadee Pope.
Science
 Sodium is the chemical element in the periodic table that has the symbol Na and atomic number 11.
Sports
 The best athletes to wear number 11
Isaiah Thomas, NBA; Mark Messier, NHL; Elvin Hayes, NBA; Yao Ming, NBA; Cale Yarborough, NASCAR; Teresa Weatherspoon, WNBA
Superstitions
 New spiritual trends claim that 11:11 on a clock refers to the signs of protectors or spirit guides.
Please write us
If you know something interesting about the number 11 or any natural number (positive integer), please write to us.Number 11 in other languages
How to say or write the number eleven in Spanish, German, French and other languages.
Spanish:  🔊 (número 11)  once 
German:  🔊 (Anzahl 11)  elf 
French:  🔊 (nombre 11)  onze 
Portuguese:  🔊 (número 11)  onze 
Chinese:  🔊 (数 11)  十一 
Other languages ... 
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Comment
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natural number (positive integer).
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Number 11 in News
CNN: Windows 11 has leaked. It's a bunch of BS Windows 10 was supposed to be Microsoft's ultimate PC operating system. The promise: Windows 10 would forever get updated twice a year, bringing tweaks, the occasional fresh coat of paint and new features to keep your computer up to date. ... June 16, 2021

BBC: Euro 2020: What is the climate cost of tournament staged in 11 countries? Euro 2020 is a unique tournament, staged across 11 countries, but experts say it will have a significant climate impact at a time when emissions must be cut dramatically. ... June 4, 2021

BBC: Conte leaves Inter Milan  three weeks after leading club to first title in 11 years Antonio Conte leaves his role as Inter Milan manager  three weeks after leading club to Serie A title. ... May 26, 2021

BBC: Yangtze storm: Violent winds kill 11 in Nantong, China At least 11 people are dead and scores hurt after a violent storm hit eastern China on Friday evening. ... May 1, 2021

BBC: Apollo 11 astronaut Michael Collins dies at 90 Michael Collins stayed in orbit as Neil Armstrong and Buzz Aldrin walked on the Moon in 1969. ... April 28, 2021
