Number 999 facts

The odd number 999 is spelled 🔊, and written in words: nine hundred and ninety-nine. The ordinal number 999th is said 🔊 and written as: nine hundred and ninety-ninth. The meaning of the number 999 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 999. What is 999 in computer science, numerology, codes and images, writing and naming in other languages. Other interesting facts, videos, news related to 999.

Interesting facts about the number 999


  • (999) Zachia is asteroid number 999. It was discovered by K. W. Reinmuth from Heidelberg-Königstuhl Observatory on 8/9/1923.

Distances between cities

  • There is a 999 miles (1,607 km) direct distance between Aleppo (Syria) and Shiraz (Iran).
  • There is a 999 miles (1,607 km) direct distance between Berlin (Germany) and Moscow (Russia).
  • There is a 999 miles (1,607 km) direct distance between Cairo (Egypt) and Omdurman (Sudan).
  • There is a 621 miles (999 km) direct distance between Daegu (South Korea) and Hangzhou (China).
  • More distances between cities ...
  • There is a 621 miles (999 km) direct distance between Daejeon (South Korea) and Huaibei (China).
  • There is a 621 miles (999 km) direct distance between Dalian (China) and Kitakyūshū (Japan).
  • There is a 999 miles (1,607 km) direct distance between Foshan (China) and Qingdao (China).
  • There is a 621 miles (999 km) direct distance between Fukuoka-shi (Japan) and Changzhou (China).
  • There is a 999 miles (1,607 km) direct distance between Guankou (China) and Suwon-si (South Korea).
  • There is a 999 miles (1,607 km) direct distance between Hyderabad (Pakistan) and Vijayawāda (India).
  • There is a 621 miles (999 km) direct distance between Hyderabad (India) and Varanasi (India).
  • There is a 999 miles (1,607 km) direct distance between Indianapolis (USA) and San Antonio (USA).
  • There is a 999 miles (1,607 km) direct distance between Jeddah (Saudi Arabia) and Shiraz (Iran).
  • There is a 999 miles (1,607 km) direct distance between Kitakyūshū (Japan) and Qiqihar (China).
  • There is a 621 miles (999 km) direct distance between Mashhad (Iran) and Tashkent (Uzbekistan).
  • There is a 621 miles (999 km) direct distance between Mumbai (India) and Salem (India).
  • There is a 999 miles (1,607 km) direct distance between Nagpur (India) and Peshawar (Pakistan).
  • There is a 999 miles (1,607 km) direct distance between Omsk (Russia) and Ürümqi (China).
  • There is a 621 miles (999 km) direct distance between Qinhuangdao (China) and Xinyang (China).


  • Nine Hours, Nine People, Nine Doors is a visual novel adventure game developed by Chunsoft. The game is the first installment in the Zero Escape series, which also includes Virtue's Last Reward and Zero Time's Last Dilemma. It was released in Japan in 2009 and in North America in 2010 for the Nintendo DS, with an iOS version following in 2013 in Japan and 2014 in the rest of the world.

History and politics

  • United Nations Security Council Resolution number 999, adopted 16 June 1995. Extends mandate of the United Nations Mission of Observers in Tajikistan, national reconciliation. Resolution text.

In other fields

  • Dreaming about number 999 means that you have correctly fulfilled the plan.


  • 999: New Stories of Horror and Suspense is a collection of short stories and novellas published in 1999 and edited by Al Sarrantonio. The title is a contraction of the year as well as 666 upside-down.


  • 999 is the smallest possible sum of three 3-digit primes that together use all non-zero digits 1 through 9
  • 999 is a Kaprekar number.

Mobile and telephony

  • 999 The emergency telephone number for the United Kingdom and Ireland and the police number in Saudi Arabia and the United Arab Emirates.


  • Selena Gomez, Camilo - 999 (Official Video)
  • 999 Hz is a very high frequency of energy. It is the highest frequency in the angelic realms and represents unity and spiritual awareness. It belongs to Solfeggio Healing Frequencies.
  • '999' (also known as Nine Nine Nine) is an English punk rock band formed in London in 1976. Their training consisted of their guitarist and lead singer of the group Nick Cash, also the guitarist and singer Guy Days, the bassist Jon Watson and drummer Pablo LaBritain.
  • '999' is a song by the Swedish alternative rock band Kent.


  • 999 - A sign of completion, finality and concentration of power

What is 999 in other units

The decimal (Arabic) number 999 converted to a Roman number is CMXCIX. Roman and decimal number conversions.
The number 999 converted to a Mayan number is mayan number 999
Decimal and Mayan number conversions.

Weight conversion

999 kilograms (kg) = 2202.4 pounds (lbs)
999 pounds (lbs) = 453.1 kilograms (kg)

Length conversion

999 kilometers (km) equals to 620.750 miles (mi).
999 miles (mi) equals to 1608 kilometers (km).
999 meters (m) equals to 3278 feet (ft).
999 feet (ft) equals 304.499 meters (m).
999 centimeters (cm) equals to 393.3 inches (in).
999 inches (in) equals to 2537.5 centimeters (cm).

Temperature conversion

999° Fahrenheit (°F) equals to 537.2° Celsius (°C)
999° Celsius (°C) equals to 1830.2° Fahrenheit (°F)

Power conversion

999 Horsepower (hp) equals to 734.66 kilowatts (kW)
999 kilowatts (kW) equals to 1358.45 horsepower (hp)

Time conversion

(hours, minutes, seconds, days, weeks)
999 seconds equals to 16 minutes, 39 seconds
999 minutes equals to 16 hours, 39 minutes

Codes and images of the number 999

Number 999 morse code: ----. ----. ----.
Sign language for number 999:
Sign language for number 999 Sign language for number 999 Sign language for number 999
Number 999 in braille:
Number 999 in braille
Images of the number
Image (1) of the numberImage (2) of the number
Number 999 black image Number 999 red image
More images, other sizes, codes and colors ...

Number 999 infographic

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

Gregorian year 999 is Buddhist year 1542.
Buddhist year 999 is Gregorian year 456 .
Gregorian year 999 is Islamic year 389 or 390.
Islamic year 999 is Gregorian year 1590 or 1591.
Gregorian year 999 is Persian year 377 or 378.
Persian year 999 is Gregorian 1620 or 1621.
Gregorian year 999 is Hebrew year 4759 or 4760.
Hebrew year 999 is Gregorian year 2761 a. C.
More about the year 999.
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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Advanced math operations

Is Prime?

The number 999 is not a prime number. The closest prime numbers are 997, 1009.
The 999th prime number in order is 7907.

Factorization and factors (dividers)

The prime factors of 999 are 3 * 3 * 3 * 37
The factors of 999 are 1, 3, 9, 27, 37, 111, 333, 999.
Total factors 8.
Sum of factors 1520 (521).

Prime factor tree


The second power of 9992 is 998.001.
The third power of 9993 is 997.002.999.


The square root √999 is 31,606961.
The cube root of 3999 is 9,996666.


The natural logarithm of No. ln 999 = loge 999 = 6,906755.
The logarithm to base 10 of No. log10 999 = 2,999565.
The Napierian logarithm of No. log1/e 999 = -6,906755.

Trigonometric functions

The cosine of 999 is 0,99965.
The sine of 999 is -0,026461.
The tangent of 999 is -0,02647.

Number 999 in Computer Science

Code typeCode value
(UTF-8 Greek and Coptic)
Unix timeUnix time 999 is equal to Thursday Jan. 1, 1970, 12:16:39 a.m. GMT
IPv4, IPv6Number 999 internet address in dotted format v4, v6 ::3e7
999 Decimal = 1111100111 Binary
999 Decimal = 1101000 Ternary
999 Decimal = 1747 Octal
999 Decimal = 3E7 Hexadecimal (0x3e7 hex)
999 BASE64OTk5
999 MD5b706835de79a2b4e80506f582af3676a
999 SHA1afc97ea131fd7e2695a98ef34013608f97f34e1d
999 SHA22417018107b171fc75130abbea6df2f5690015fbe4b10ac7964952c80d
999 SHA25683cf8b609de60036a8277bd0e96135751bbc07eb234256d4b65b893360651bf2
999 SHA384c0e49520d45e4a0e603bfa697a9876b0a1433dbf95bb25bded2e6839a5a1a6d7d047224abae3de374be28503bbcaa047
More SHA codes related to the number 999 ...

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Numerology 999

The meaning of the number 9 (nine), numerology 9

Character frequency 9: 3

The number 9 (nine) is the sign of ideals, Universal interest and the spirit of combat for humanitarian purposes. It symbolizes the inner Light, prioritizing ideals and dreams, experienced through emotions and intuition. It represents the ascension to a higher degree of consciousness and the ability to display love for others. He/she is creative, idealistic, original and caring.
More about the the number 9 (nine), numerology 9 ...

№ 999 in other languages

How to say or write the number nine hundred and ninety-nine in Spanish, German, French and other languages.
Spanish: 🔊 (número 999)

novecientos noventa y nueve

German: 🔊 (Nummer 999)


French: 🔊 (nombre 999)

neuf cent quatre-vingt-dix-neuf

Portuguese: 🔊 (número 999)

novecentos e noventa e nove

Hindi: 🔊 (संख्या 999)

नौ सौ, निन्यानवे

Chinese: 🔊 (数 999)


Arabian: 🔊 (عدد 999)

تسعمائة و تسعة و تسعون

Czech: 🔊 (číslo 999)

devětset devadesát devět

Korean: 🔊 (번호 999)


Danish: 🔊 (nummer 999)

nihundrede og nioghalvfems

Hebrew: (מספר 999)

תשע מאות תשעים ותשע

Dutch: 🔊 (nummer 999)


Japanese: 🔊 (数 999)


Indonesian: 🔊 (jumlah 999)

sembilan ratus sembilan puluh sembilan

Italian: 🔊 (numero 999)


Norwegian: 🔊 (nummer 999)

ni hundre og nittini

Polish: 🔊 (liczba 999)

dziewięćset dziewięćdziesiąt dziewięć

Russian: 🔊 (номер 999)

девятьсот девяносто девять

Turkish: 🔊 (numara 999)


Thai: 🔊 (จำนวน 999)


Ukrainian: 🔊 (номер 999)

дев'ятсот дев'яносто дев'ять

Vietnamese: 🔊 (con số 999)

chín trăm chín mươi chín

Other languages ...

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Frequently asked questions about the number 999

  • How do you write the number 999 in words?

    999 can be written as "nine hundred and ninety-nine".

Number 999 in News

BBC: Driver calls 999 to report himself for drink-driving in Knaresborough
The man is arrested after telling police he is "drink-driving and doesn't know what he's doing".
Feb. 13, 2024
BBC: Post-mortems to take place after Norfolk house deaths
Norfolk Police says it did not respond to a 999 call from the home where four family members died.
Jan. 21, 2024
BBC: 999 calls: Technical glitch fixed for most forces
BT says a backup service is available and people should call 999 as usual.
June 25, 2023
BBC: Metropolitan Police: 'Alarm' over move to cut response to mental health calls
An ex-head of the police watchdog says the plan to send officers to fewer 999 calls could create a "vacuum".
May 29, 2023
BBC: Some 999 callers will be told to go elsewhere
NHS England says the new approach to lower-priority emergency calls will speed up response times.
Feb. 16, 2023

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