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How to square the circle for real. Spaghetti sort: An algorithm for sorting rods of spaghetti. Squircle: Not quite a square, not quite a circle, definitely not a Pokémon either. Taxicab number: Never tell a Numberphile that a number is uninteresting. Tetraphobia: Sometimes found in conjunction with triskaidekaphobia (see below) in East Asian ...
One of the shortest-lived states in history, it was independent for only seven hours (07:00 to 14:00 on 19 September 1967). Socotra: A Yemeni island that is geographically part of Africa, and is known as "the most alien-looking place on Earth" due to its strange flora. This includes the "dragon blood tree" and a tree which produces cucumbers.
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
Simon Elmore won the Guinness World Record for most straws in the mouth on August 6, 2009. He held 400 straws between his jaws for 10 seconds. He held 400 straws between his jaws for 10 seconds. 2.
Numbers very close to, but below one are often expressed in "nines" (N – not to be confused with the unit newton), that is in the number of nines following the decimal separator in writing the number in question. For example, "three nines" or "3N" indicates 0.999 or 99.9%, "four nines five" or "4N5" is the expression for the number 0.99995 or ...
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 ...
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Famously, in a discussion between the mathematicians G. H. Hardy and Srinivasa Ramanujan about interesting and uninteresting numbers, Hardy remarked that the number 1729 of the taxicab he had ridden seemed "rather a dull one", and Ramanujan immediately answered that it is interesting, being the smallest number that is the sum of two cubes in ...