141 (number)

← 140 141 142 →
← 140 141 142 143 144 145 146 147 148 149 → List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred forty-one
Ordinal	141st (one hundred and forty-first)
Factorization	3 × 47
Divisors	1, 3, 47, 141
Roman numeral	CXLI
Binary	100011012
Ternary	120203
Quaternary	20314
Quinary	10315
Senary	3536
Octal	2158
Duodecimal	B912
Hexadecimal	8D16
Vigesimal	7120
Base 36	3X36

141 (one hundred [and] forty-one) is the natural number following 140 and preceding 142.

In mathematics

141 is:

• a centered pentagonal number.^[1]
• the sum of the sums of the divisors of the first 13 positive integers.^[2]
• the second n to give a prime Cullen number (of the form n2ⁿ + 1).^[3]
• an undulating number in base 10, with the previous being 131, and the next being 151.
• the sixth hendecagonal (11-gonal) number.^[4]
• a semiprime: a product of two prime numbers, namely 3 and 47. Since those prime factors are Gaussian primes, this means that 141 is a Blum integer.

In the military

• K-141 Kursk was a Russian nuclear cruise missile submarine, which sank in the Barents Sea August 12, 2000
• USS Alchemy (AM-141) was a United States Navy Admirable-class minesweeper ship during World War II
• USS Buckingham (APA-141) was a United States Navy Haskell-class attack transport during World War II
• USS General A. W. Greely (AP-141) was a United States Navy General G. O. Squier transport ship during World War II
• USS Hamilton (DD-141) was a United States Navy Wickes class destroyer following World War I
• USS Hill (DE-141) was a United States Navy Edsall-class destroyer escort during World War II
• The Lockheed C-141 Starlifter was a United States Air Force military strategic airlifter

In transportation

• London Buses route 141 is a Transport for London contracted bus route in London
• The 141 C Ouest was a 2-8-2 steam locomotive of the Chemin de fer de l'État
• British Rail Class 141 was the first production model of the Pacer diesel multiple units
• Union des Transports Aériens de Guinée UTA Flight 141 charter, which crashed in the Bight of Benin on December 25, 2003
• The Saipa 141 car produced by SAIPA
• The Córas Iompair Éireann 141 class locomotive from General Motors Electro-Motive Division in 1962

In other fields

141 is also:

• The year AD 141 or 141 BC
• 141 AH is a year in the Islamic calendar that corresponds to 759 – 760 CE
• 141 Lumen is a dark C-type, rocky asteroid orbiting in the Asteroid belt
• The atomic number of Unquadunium, a temporary chemical element
• The telephone dialing prefix for withholding one’s Caller ID in the United Kingdom
• Psalm 141
• Sonnet 141 by William Shakespeare
• The 141 is the number of people (132 children) were killed when Taliban stormed an army-run school in the northwestern city of Peshawar (Pakistan) and systematically went from room to room, shooting children during an eight-hour killing spree.

See also

• List of highways numbered 141
• United Nations Security Council Resolution 141
• United States Supreme Court cases, Volume 141

References

1. "Sloane's A005891 : Centered pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27.
2. "Sloane's A024916 : sum_{k=1..n} sigma(k) where sigma(n) = sum of divisors of n". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
3. Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 139
4. "Sloane's A051682 : 11-gonal (or hendecagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27.