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1111 in various calendarsGregorian calendar 1111 MCXI Ab urbe condita 1864 Armenian calendar 560 ԹՎ ՇԿ Assyrian calendar 5861 Balinese saka calendar 1032–1033 Bengali calendar 518 Berber calendar 2061 English Regnal year 11 Hen. 1 – 12 Hen. 1
1.1.1.1 is a free Domain Name System (DNS) service by the American company Cloudflare in partnership with APNIC. [7][needs update] The service functions as a recursive name server, providing domain name resolution for any host on the Internet. The service was announced on April 1, 2018. [8]
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111 is the fourth non-trivial nonagonal number, and the seventh perfect totient number. 111 is furthermore the ninth number such that its Euler totient φ ( n ) {\displaystyle \varphi (n)} of 72 is equal to the totient value of its sum-of-divisors: 1. φ ( 111 ) = φ ( σ ( 111 ) ) . {\displaystyle \varphi (111)=\varphi (\sigma (111)).} Two other of it...
In cricket, the number 111 is sometimes called "a Nelson" after Admiral Nelson, who allegedly only had "One Eye, One Arm, One Leg" near the end of his life. This is in fact inaccurate—Nelson never lost a leg. Alternate meanings include "One Eye, One Arm, One Ambition" and "One Eye, One Arm, One Arsehole". Particularly in cricket, multiples of 111 a...
111is also: 1. The atomic number of the element roentgenium(Rg). 2. The chemical compound 1,1,1-trichloroethane is a chlorinated hydrocarbon that was used as an industrial solventwith a trade name "Solvent 111". 3. The emergency telephone number in New Zealand; see 111 (emergency telephone number). 4. NHS 111, a medical helpline in England and Scot...
Further reading
Wells, D. The Penguin Dictionary of Curious and Interesting NumbersLondon: Penguin Group. (1987): 134
Contents. List of TCP and UDP port numbers. This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic.
In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1 — a more specific type of repdigit. The term stands for "repeated unit" and was coined in 1966 by Albert H. Beiler in his book Recreations in the Theory of Numbers .
The unary numeral system is the simplest numeral system to represent natural numbers: [1] to represent a number N, a symbol representing 1 is repeated N times. [2] In the unary system, the number 0 (zero) is represented by the empty string, that is, the absence of a symbol.
The name "ones' complement" [1] refers to the fact that such an inverted value, if added to the original, would always produce an "all ones" number (the term "complement" refers to such pairs of mutually additive inverse numbers, here in respect to a non-0 base number).
