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A property of weird numbers is that if n is weird, and p is a prime greater than the sum of divisors σ(n), then pn is also weird. [4] This leads to the definition of primitive weird numbers: weird numbers that are not a multiple of other weird numbers (sequence A002975 in the OEIS). Among the 1765 weird numbers less than one million, there are ...
An infinite number of monkeys typing on an infinite number of typewriters will (almost surely) produce all possible written texts. Interesting number paradox Either all natural numbers are interesting or else none of them are.
Never give advice unless asked; Never give a sucker an even break; Never judge a book by its cover; Never let the sun go down on your anger; Never let the truth get in the way of a good story [20] [better source needed] Never look a gift horse in the mouth; Never put off until tomorrow what you can do today
For example, the phrase "the least number not expressible in fewer than eleven words" sounds like it should identify a unique number, but the phrase itself contains only ten words, and so the number identified by the phrase would have an expression in fewer than eleven words after all. This is known as the Berry paradox. [10]
The Newton–Pepys problem is a probability problem concerning the probability of throwing sixes from a certain number of dice. [1] In 1693 Samuel Pepys and Isaac Newton corresponded over a problem posed to Pepys by a school teacher named John Smith. [2] The problem was: Which of the following three propositions has the greatest chance of success?
the herb also known as rocket or garden rocket. Borrowed from southern Italian dialect in the early 1960s ("Ask Italian greengrocers for arugula, rucola or ruccoli; ask other markets for rouquette, rocket salad or, simply, rocket." — The New York Times, May 24, 1960, in OED). [27] automobile a car [28] [29]
The expansion of an acronym like PIN or HIV may be well known to English speakers, but the acronyms themselves have come to be treated as words, so little thought is given to what their expansion is (and "PIN" is also pronounced the same as the word "pin"; disambiguation is probably the source of "PIN number"; "SIN number" for "Social Insurance ...
even and odd functions, a function is even if f(−x) = f(x) for all x; even and odd permutations, a permutation of a finite set is even if it is composed of an even number of transpositions; Singly even number, an integer divisible by 2 but not divisible by 4; Even code, if the Hamming weight of all of a binary code's codewords is even