# Number 80 facts

The even number 80 is spelled 🔊, and written in words: eighty. The ordinal number 80th is said 🔊 and written as: eightieth. The meaning of the number 80 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 80. What is 80 in computer science, numerology, codes and images, writing and naming in other languages. Other interesting facts, news related to 80.

## What is 80 in other units

The decimal (Arabic) number 80 converted to a Roman number is LXXX. Roman and decimal number conversions.
 The number 80 converted to a Mayan number is Decimal and Mayan number conversions.

#### Weight conversion

80 kilograms (kg) = 176.4 pounds (lbs)
80 pounds (lbs) = 36.3 kilograms (kg)

#### Length conversion

80 kilometers (km) equals to 49.710 miles (mi).
80 miles (mi) equals to 128.748 kilometers (km).
80 meters (m) equals to 128.748 feet (ft).
80 feet (ft) equals 24.384 meters (m).
80 centimeters (cm) equals to 31.5 inches (in).
80 inches (in) equals to 203.2 centimeters (cm).

#### Temperature conversion

80° Fahrenheit (°F) equals to 26.7° Celsius (°C)
80° Celsius (°C) equals to 176° Fahrenheit (°F)

#### Power conversion

80 Horsepower (hp) equals to 58.83 kilowatts (kW)
80 kilowatts (kW) equals to 108.78 horsepower (hp)

#### Time conversion

(hours, minutes, seconds, days, weeks)
80 seconds equals to 1 minute, 20 seconds
80 minutes equals to 1 hour, 20 minutes

### Codes and images of the number 80

Number 80 morse code: ---.. -----
Sign language for number 80:

Number 80 in braille:
Images of the number
Image (1) of the numberImage (2) of the number
More images, other sizes, codes and colors ...

## Year 80 AD

• The Emperor Titus inaugurates the Flavian Amphitheatre with 100 days of games.
• The original Roman Pantheon was destroyed in a fire, together with many other buildings.
• The Eifel Aqueduct was constructed.
• The aeolipile, the first steam engine, was invented by Hero of Alexandria.
• Vologases II of Parthia died.
• Julius Agricola, the Roman Governor of Britain,advanced into Scotland at the head of a Roman Army.

### Gregorian, Hebrew, Islamic, Persian and Buddhist Year (Calendar)

Gregorian year 80 is Buddhist year 623.
Buddhist year 80 is Gregorian year 463 a. C.
Gregorian year 80 is Islamic year -559 or -558.
Islamic year 80 is Gregorian year 699 or 700.
Gregorian year 80 is Persian year -543 or -542.
Persian year 80 is Gregorian 701 or 702.
Gregorian year 80 is Hebrew year 3840 or 3841.
Hebrew year 80 is Gregorian year 3680 a. C.
The Buddhist calendar is used in Sri Lanka, Cambodia, Laos, Thailand, and Burma. The Persian calendar is the official calendar in Iran and Afghanistan.

## Mathematics of no. 80

### Multiplications

#### Multiplication table of 80

80 multiplied by two equals 160 (80 x 2 = 160).
80 multiplied by three equals 240 (80 x 3 = 240).
80 multiplied by four equals 320 (80 x 4 = 320).
80 multiplied by five equals 400 (80 x 5 = 400).
80 multiplied by six equals 480 (80 x 6 = 480).
80 multiplied by seven equals 560 (80 x 7 = 560).
80 multiplied by eight equals 640 (80 x 8 = 640).
80 multiplied by nine equals 720 (80 x 9 = 720).
show multiplications by 6, 7, 8, 9 ...

### Fractions: decimal fraction and common fraction

#### Fraction table of 80

Half of 80 is 40 (80 / 2 = 40).
One third of 80 is 26,6667 (80 / 3 = 26,6667 = 26 2/3).
One quarter of 80 is 20 (80 / 4 = 20).
One fifth of 80 is 16 (80 / 5 = 16).
One sixth of 80 is 13,3333 (80 / 6 = 13,3333 = 13 1/3).
One seventh of 80 is 11,4286 (80 / 7 = 11,4286 = 11 3/7).
One eighth of 80 is 10 (80 / 8 = 10).
One ninth of 80 is 8,8889 (80 / 9 = 8,8889 = 8 8/9).
show fractions by 6, 7, 8, 9 ...

 80

### Advanced math operations

#### Is Prime?

The number 80 is not a prime number. The closest prime numbers are 79, 83.
The 80th prime number in order is 409.

#### Factorization and factors (dividers)

The prime factors of 80 are 2 * 2 * 2 * 2 * 5
The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
Total factors 10.
Sum of factors 186 (106).

#### Powers

The second power of 802 is 6.400.
The third power of 803 is 512.000.

#### Roots

The square root √80 is 8,944272.
The cube root of 380 is 4,308869.

#### Logarithms

The natural logarithm of No. ln 80 = loge 80 = 4,382027.
The logarithm to base 10 of No. log10 80 = 1,90309.
The Napierian logarithm of No. log1/e 80 = -4,382027.

### Trigonometric functions

The cosine of 80 is -0,110387.
The sine of 80 is -0,993889.
The tangent of 80 is 9,003655.

### Properties of the number 80

More math properties ...

## Number 80 in Computer Science

Code typeCode value
Port 80/TCPHTTP (HyperText Transfer Protocol) - used for transferring web pages
Ascii80 ascii is character P
Unix timeUnix time 80 is equal to Thursday Jan. 1, 1970, 12:01:20 a.m. GMT
IPv4, IPv6Number 80 internet address in dotted format v4 0.0.0.80, v6 ::50
80 Decimal = 1010000 Binary
80 Decimal = 2222 Ternary
80 Decimal = 120 Octal
80 Decimal = 50 Hexadecimal (0x50 hex)
80 BASE64ODA=
80 MD5f033ab37c30201f73f142449d037028d
80 SHA1b888b29826bb53dc531437e723738383d8339b56
80 SHA25648449a14a4ff7d79bb7a1b6f3d488eba397c36ef25634c111b49baf362511afc
80 SHA3848e3f10fab019b9abbc9a5bc88c789d4715511f4cc93de2bb09c3cea3cfb3858d79e1f4bda5ba8342ea4c8f5607463606
More SHA codes related to the number 80 ...

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## Numerology 80

### The meaning of the number 8 (eight), numerology 8

Character frequency 8: 1

The number eight (8) is the sign of organization, perseverance and control of energy to produce material and spiritual achievements. It represents the power of realization, abundance in the spiritual and material world. Sometimes it denotes a tendency to sacrifice but also to be unscrupulous.
More about the the number 8 (eight), numerology 8 ...

### The meaning of the number 0 (zero), numerology 0

Character frequency 0: 1

Everything begins at the zero point and at the zero point everything ends. Many times we do not know the end, but we know the beginning, it is at the zero point.
More about the the number 0 (zero), numerology 0 ...

## Interesting facts about the number 80

### Asteroids

• (80) Sappho is asteroid number 80. It was discovered by N. R. Pogson from Madras Observatory on 5/2/1864.

### Areas, mountains and surfaces

• The total area of Cyprus (main island) is 3,565 square miles (9,234 square km). Country Cyprus, Akrotiri and Dhekelia, Sovereign Base Areas of the United Kingdom, and Northern Cyprus. 80th largest island in the world.

### Distances between cities

• There is a 80 miles (128 km) direct distance between Brooklyn (USA) and Philadelphia (USA).
• There is a 80 miles (128 km) direct distance between Caracas (Venezuela) and Valencia (Venezuela).
• There is a 50 miles (80 km) direct distance between Changzhou (China) and Suzhou (China).
• There is a 80 miles (128 km) direct distance between Sūrat (India) and Vadodara (India).
• More distances between cities ...

### Games

• Pokémon Slowbro (Yadoran) is a Pokémon number # 080 of the National Pokédex. Slowbro is a water-type and psychic Pokémon in the first generation. Group is a Pokémon Egg Monster and Water 1. indexes ontros of Slowbro are Johto index 081 , Kalos Center index 134 - Pokédex Coastal Zone.

### History and politics

• United Nations Security Council Resolution number 80, adopted 14 March 1950. Commending India, Pakistan and Kashmir for ceasefire agreements. Resolution text.

### Mathematics

• 80 is the smallest cubeful integer with a cubeful successor
• 80 is the smallest number n where n and n+1 are both products of 4 or more primes.

### Motorsport and cars

• The Audi 80 is a D-segment passenger car produced by the German manufacturer Audi from 1972 to 1996.

### Science

• Mercury is the chemical element in the periodic table that has the symbol Hg and atomic number 80.

### Sports

• The best athletes to wear number 80
Jerry Rice, NFL; Kellen Winslow, NFL; Steve Largent, NFL; Chris Carter, NFL

### Weapons

• The T-80 is a main battle tank that was designed and manufactured in the former Soviet Union and manufactured in Russia.

## № 80 in other languages

How to say or write the number eighty in Spanish, German, French and other languages.
 Spanish: 🔊 (número 80) ochenta German: 🔊 (Nummer 80) achtzig French: 🔊 (nombre 80) quatre-vingts Portuguese: 🔊 (número 80) oitenta Hindi: 🔊 (संख्या 80) अस्सी Chinese: 🔊 (数 80) 八十 Arabian: 🔊 (عدد 80) ثمانون Czech: 🔊 (číslo 80) osmdesát Korean: 🔊 (번호 80) 팔십 Danish: 🔊 (nummer 80) firs Hebrew: (מספר 80) שמונים Dutch: 🔊 (nummer 80) tachtig Japanese: 🔊 (数 80) 八十 Indonesian: 🔊 (jumlah 80) delapan puluh Italian: 🔊 (numero 80) ottanta Norwegian: 🔊 (nummer 80) åtti Polish: 🔊 (liczba 80) osiemdziesiąt Russian: 🔊 (номер 80) восемьдесят Turkish: 🔊 (numara 80) seksen Thai: 🔊 (จำนวน 80) แปดสิบ Ukrainian: 🔊 (номер 80) вісімдесят Vietnamese: 🔊 (con số 80) tám mươi Other languages ...

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## Frequently asked questions about the number 80

• ### How do you write the number 80 in words?

80 can be written as "eighty".

## Number 80 in News

 BBC: 'A story of absolute heroism': 80 years on from WW2 sabotage mission In 1943, Operation Jaywick sent 14 men from Australia on a mission to sink Japanese ships in Singapore. Sept. 26, 2023 BBC: The leafy street where 80 fake firms have sham addresses Financial crime experts say "burner companies" are "most likely part of a criminal network". Sept. 14, 2023 The Sydney Morning Herald: One BBC journalist cops more than 80 per cent of abuse aimed at broadcaster Even Marianna Spring’s hiring by the BBC is fodder for conspiracy theorists who “love to say that [the BBC] created my role because they knew COVID was coming”. Aug. 7, 2023 France24: Nearly 80 migrants drown in deadliest shipwreck off Greece this year At least 78 migrants died after their fishing boat sank off the Peloponnese, Greece's coastguard said Wednesday, as fears mounted that the death toll could rise much higher. June 14, 2023 BBC: Nicola Sturgeon's arrest over SNP finances - in 80 seconds Scotland's former first minister was questioned by police before being released without charge pending further investigations. June 11, 2023