119 (number)

119 (one hundred [and] nineteen) is the natural number following 118 and preceding 120.

← 118 119 120 →
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Cardinal	one hundred nineteen
Ordinal	119th (one hundred nineteenth)
Factorization	7 × 17
Divisors	1, 7, 17, 119
Greek numeral	ΡΙΘ´
Roman numeral	CXIX
Binary	11101112
Ternary	111023
Octal	1678
Duodecimal	9B12
Hexadecimal	7716

Mathematics

• 119 is a Perrin number, preceded in the sequence by 51, 68, 90 (it is the sum of the first two mentioned).[1]
• 119 is the sum of five consecutive primes (17 + 19 + 23 + 29 + 31).
• 119 is the sum of seven consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29).
• 119 is a highly cototient number.[2]
• 119 is the order of the largest cyclic subgroups of the monster group.[3]
• 119 is the smallest composite number that is 1 less than a factorial (120 is 5!).
• 119 is a semiprime, and the third in the {7×q} family.

Telephony

• 119 is an emergency telephone number in some countries
• A number to report youth at risk in France[4]
• 119 is the emergency number in Afghanistan that belongs to police and interior ministry.
• The South Korean emergency call number
• The Chinese fire station call number
• 119 is the NHS test and trace number in the UK

Other

• 119 is the default port for unencrypted NNTP connections.
• Project 119 is a governmental program of the People's Republic of China targeting sports that China has not traditionally excelled in at the Summer Olympics, to maximize the number of medals won during the games.
• 119 is also the atomic number of the theoretical element ununennium.
• Union Pacific No. 119, a 4-4-0 American Type standard gauge steam locomotive of the Union Pacific Railroad that was memorialized in railroading history on the right-hand side of Andrew J. Russell's famous "Joining of the Lines" photograph taken on May 10th, 1869 at Promontory, Utah, during the celebration of the completion of the First Transcontinental Railroad, where it was cowcatcher to cowcatcher with Central Pacific Railroad's Jupiter (locomotive).

See also

• List of highways numbered 119

References

1. "Sloane's A001608 : Perrin sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 27 May 2016.
2. "Sloane's A100827 : Highly cototient numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 27 May 2016.
3. J. H. Conway et al.: Atlas of Finite Groups. Clarendon Press, Oxford, 1985. ISBN 0-19-853199-0 (Page 223)
4. Descriptive website