Number 231 facts
The odd number 231 is spelled 🔊, and written in words: two hundred and thirty-one. The ordinal number 231st is said 🔊 and written as: two hundred and thirty-first. Phone prefix +231 or 00231. The meaning of the number 231 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 231. What is 231 in computer science, numerology, codes and images, writing and naming in other languages. Other interesting facts related to 231.
Interesting facts about the number 231
Asteroids
- (231) Vindobona is asteroid number 231. It was discovered by J. Palisa from Vienna Observatory on 9/10/1882.
Areas, mountains and surfaces
- The total area of Geographical Society Island is 663 square miles (1,717 square km). Country Greenland, forms part of the Danish Realm (Denmark). 231th largest island in the world.
Distances between cities
- There is a 144 miles (231 km) direct distance between Anyang (China) and Luoyang (China).
- There is a 231 miles (371 km) direct distance between Baoding (China) and Qinhuangdao (China).
- There is a 144 miles (231 km) direct distance between Benin City (Nigeria) and Port Harcourt (Nigeria).
Food
- The food additive E-231 O-pheniphenol of chemical origin is classified as a preservative. According to some websites the additive E-231 is considered dangerous.
Games
History and politics
- ISO 3166 country codes for Ethiopia are ET, ETH, 231 and internet top-level domain is .et
- United Nations Security Council Resolution number 231, adopted 15 December 1966. Extending the mandate of the United Nations Peacekeeping Force in Cyprus. Resolution text.
In other fields
- U.S. liquid gallon is legally defined as 231 cubic inches
Mathematics
- 231 is the smallest triangular number in which the sum of the external digits equals the sum of the internal digits
- 231 is the number of partitions of 16.
Mobile and telephony
- 231 is an area code for Muskegon, Michigan (MI), USA, according to the North American Numbering Plan.
- Number 231 or +231 or 00231 is a dial the international call prefix for Liberia. (00/+) is dial the international call prefix.
Music
- Pacific 231, an orchestral work by French composer Arthur Honegger.
Tv, movies and cinematography
- Pacific 231, a 1949 short film directed by Jean Mitry.
Please write us
If you know something interesting about the number 231 or any natural number (positive integer), please write to us.What is 231 in other units
The decimal (Arabic) number 231 converted to a Roman number is CCXXXI.
Roman and decimal number conversions.
231 kilograms (kg) = 509.3 pounds (lbs)
231 pounds (lbs) = 104.8 kilograms (kg)
231 kilometers (km) equals to 143.537 miles (mi).
231 miles (mi) equals to 371.759 kilometers (km).
231 meters (m) equals to 371.759 feet (ft).
231 feet (ft) equals 70.410 meters (m).
231 centimeters (cm) equals to 90.9 inches (in).
231 inches (in) equals to 586.7 centimeters (cm).
231° Fahrenheit (°F) equals to 110.6° Celsius (°C)
231° Celsius (°C) equals to 447.8° Fahrenheit (°F)
231 Horsepower (hp) equals to 169.88 kilowatts (kW)
231 kilowatts (kW) equals to 314.12 horsepower (hp)
231 seconds equals to 3 minutes, 51 seconds
231 minutes equals to 3 hours, 51 minutes
| The number 231 converted to a Mayan number is |
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| Decimal and Mayan number conversions. |
Weight conversion
231 kilograms (kg) = 509.3 pounds (lbs)
231 pounds (lbs) = 104.8 kilograms (kg)
Length conversion
231 kilometers (km) equals to 143.537 miles (mi).
231 miles (mi) equals to 371.759 kilometers (km).
231 meters (m) equals to 371.759 feet (ft).
231 feet (ft) equals 70.410 meters (m).
231 centimeters (cm) equals to 90.9 inches (in).
231 inches (in) equals to 586.7 centimeters (cm).
Temperature conversion
231° Fahrenheit (°F) equals to 110.6° Celsius (°C)
231° Celsius (°C) equals to 447.8° Fahrenheit (°F)
Power conversion
231 Horsepower (hp) equals to 169.88 kilowatts (kW)
231 kilowatts (kW) equals to 314.12 horsepower (hp)
Time conversion
(hours, minutes, seconds, days, weeks)231 seconds equals to 3 minutes, 51 seconds
231 minutes equals to 3 hours, 51 minutes
Codes and images of the number 231
Number 231 morse code: ..--- ...-- .----Sign language for number 231:
Number 231 in braille:
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Number 231 infographic
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Year 231 AD
Origen, disciple of Ammonius Saccas, founder of Neoplatonism , was exiled in Caesarea.
Gregorian, Hebrew, Islamic, Persian and Buddhist Year (Calendar)
Gregorian year 231 is Buddhist year 774.Buddhist year 231 is Gregorian year 312 a. C.
Gregorian year 231 is Islamic year -403 or -402.
Islamic year 231 is Gregorian year 845 or 846.
Gregorian year 231 is Persian year -392 or -391.
Persian year 231 is Gregorian 852 or 853.
Gregorian year 231 is Hebrew year 3991 or 3992.
Hebrew year 231 is Gregorian year 3529 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.
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Mathematics of no. 231
Multiplications
Multiplication table of 231
231 multiplied by two equals 462 (231 x 2 = 462).
231 multiplied by three equals 693 (231 x 3 = 693).
231 multiplied by four equals 924 (231 x 4 = 924).
231 multiplied by five equals 1155 (231 x 5 = 1155).
231 multiplied by six equals 1386 (231 x 6 = 1386).
231 multiplied by seven equals 1617 (231 x 7 = 1617).
231 multiplied by eight equals 1848 (231 x 8 = 1848).
231 multiplied by nine equals 2079 (231 x 9 = 2079).
show multiplications by 6, 7, 8, 9 ...
231 multiplied by seven equals 1617 (231 x 7 = 1617).
231 multiplied by eight equals 1848 (231 x 8 = 1848).
231 multiplied by nine equals 2079 (231 x 9 = 2079).
Fractions: decimal fraction and common fraction
Fraction table of 231
Half of 231 is 115,5 (231 / 2 = 115,5 = 115 1/2).
One third of 231 is 77 (231 / 3 = 77).
One quarter of 231 is 57,75 (231 / 4 = 57,75 = 57 3/4).
One fifth of 231 is 46,2 (231 / 5 = 46,2 = 46 1/5).
One sixth of 231 is 38,5 (231 / 6 = 38,5 = 38 1/2).
One seventh of 231 is 33 (231 / 7 = 33).
One eighth of 231 is 28,875 (231 / 8 = 28,875 = 28 7/8).
One ninth of 231 is 25,6667 (231 / 9 = 25,6667 = 25 2/3).
show fractions by 6, 7, 8, 9 ...
One seventh of 231 is 33 (231 / 7 = 33).
One eighth of 231 is 28,875 (231 / 8 = 28,875 = 28 7/8).
One ninth of 231 is 25,6667 (231 / 9 = 25,6667 = 25 2/3).
Calculator
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Advanced math operations
Is Prime?
The number 231 is not a prime number. The closest prime numbers are 229, 233.
The 231st prime number in order is 1453.
Factorization and factors (dividers)
The prime factors of 231 are 3 * 7 * 11
The factors of 231 are 1, 3, 7, 11, 21, 33, 77, 231.
Total factors 8.
Sum of factors 384 (153).
Prime factor tree
Powers
The second power of 2312 is 53.361.
The third power of 2313 is 12.326.391.
Roots
The square root √231 is 15,198684.
The cube root of 3√231 is 6,135792.
Logarithms
The natural logarithm of No. ln 231 = loge 231 = 5,442418.
The logarithm to base 10 of No. log10 231 = 2,363612.
The Napierian logarithm of No. log1/e 231 = -5,442418.
Trigonometric functions
The cosine of 231 is 0,092806.The sine of 231 is -0,995684.
The tangent of 231 is -10,728637.
Number 231 in Computer Science
| Code type | Code value |
|---|---|
| Html | ç LATIN SMALL LETTER C WITH CEDILLA ç ç (Miscellaneous HTML entities) |
| Unix time | Unix time 231 is equal to Thursday Jan. 1, 1970, 12:03:51 a.m. GMT |
| IPv4, IPv6 | Number 231 internet address in dotted format v4 0.0.0.231, v6 ::e7 |
| 231 Decimal | = 11100111 Binary |
| 231 Decimal | = 22120 Ternary |
| 231 Decimal | = 347 Octal |
| 231 Decimal | = E7 Hexadecimal (0xe7 hex) |
| 231 BASE64 | MjMx |
| 231 MD5 | 9b04d152845ec0a378394003c96da594 |
| 231 SHA1 | eadc1dd8fc279583d5552700ae5d248e3fa123bd |
| 231 SHA224 | 356f8d3a94dcef9c0b3a18dc151d9c2767bc7cf55627eca7b361f15b |
| 231 SHA256 | 138d9e809e386a7b800791d1f664f56d1c55f3d1ba411b950862729bc486c5ce |
| 231 SHA384 | 10e73815e9db5597e390c9abade7dff61260039662f13d899ed03ff37048a0edb23f1ae35b784e580c8e2fe394f0a6bc |
| More SHA codes related to the number 231 ... | |
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Numerology 231
The meaning of the number 3 (three), numerology 3
Character frequency 3: 1
The number three (3) came to share genuine expression and sensitivity with the world. People associated with this number need to connect with their deepest emotions. The number 3 is characterized by its pragmatism, it is utilitarian, sagacious, dynamic, creative, it has objectives and it fulfills them. He/she is also self-expressive in many ways and with good communication skills.
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The meaning of the number 2 (two), numerology 2
Character frequency 2: 1
The number two (2) needs above all to feel and to be. It represents the couple, duality, family, private and social life. He/she really enjoys home life and family gatherings. The number 2 denotes a sociable, hospitable, friendly, caring and affectionate person. It is the sign of empathy, cooperation, adaptability, consideration for others, super-sensitivity towards the needs of others.
The number 2 (two) is also the symbol of balance, togetherness and receptivity. He/she is a good partner, colleague or companion; he/she also plays a wonderful role as a referee or mediator. Number 2 person is modest, sincere, spiritually influenced and a good diplomat. It represents intuition and vulnerability.
More about
the the number 2 (two), numerology 2
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The number 2 (two) is also the symbol of balance, togetherness and receptivity. He/she is a good partner, colleague or companion; he/she also plays a wonderful role as a referee or mediator. Number 2 person is modest, sincere, spiritually influenced and a good diplomat. It represents intuition and vulnerability.
The meaning of the number 1 (one), numerology 1
Character frequency 1: 1
Number one (1) came to develop or balance creativity, independence, originality, self-reliance and confidence in the world. It reflects power, creative strength, quick mind, drive and ambition. It is the sign of individualistic and aggressive nature.
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№ 231 in other languages
How to say or write the number two hundred and thirty-one in Spanish, German, French and other languages.
| Spanish: | 🔊 (número 231) | doscientos treinta y uno |
| German: | 🔊 (Nummer 231) | zweihunderteinunddreißig |
| French: | 🔊 (nombre 231) | deux cent trente et un |
| Portuguese: | 🔊 (número 231) | duzentos e trinta e um |
| Hindi: | 🔊 (संख्या 231) | दो सौ, इकतीस |
| Chinese: | 🔊 (数 231) | 二百三十一 |
| Arabian: | 🔊 (عدد 231) | مئتان و واحد و ثلاثون |
| Czech: | 🔊 (číslo 231) | dvěstě třicet jedna |
| Korean: | 🔊 (번호 231) | 이백삼십일 |
| Danish: | 🔊 (nummer 231) | tohundrede og enogtredive |
| Hebrew: | (מספר 231) | מאתיים שלשים ואחת |
| Dutch: | 🔊 (nummer 231) | tweehonderdeenendertig |
| Japanese: | 🔊 (数 231) | 二百三十一 |
| Indonesian: | 🔊 (jumlah 231) | dua ratus tiga puluh satu |
| Italian: | 🔊 (numero 231) | duecentotrentuno |
| Norwegian: | 🔊 (nummer 231) | to hundre og tretti-en |
| Polish: | 🔊 (liczba 231) | dwieście trzydzieści jeden |
| Russian: | 🔊 (номер 231) | двести тридцать один |
| Turkish: | 🔊 (numara 231) | ikiyüzotuzbir |
| Thai: | 🔊 (จำนวน 231) | สองร้อยสามสิบเอ็ด |
| Ukrainian: | 🔊 (номер 231) | двісті тридцять один |
| Vietnamese: | 🔊 (con số 231) | hai trăm ba mươi mốt |
| Other languages ... | ||
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Frequently asked questions about the number 231
How do you write the number 231 in words?
231 can be written as "two hundred and thirty-one".