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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 ...
The BBC has referred to Unfavorable Semicircle as "YouTube's strangest mystery". [1] Unfavorable Semicircle has also been referred to as "one of the Top 10 Weirdest YouTube Channels". [5] In February 2016, several hours after the BBC made an article on the channel, it was banned permanently for reasons that are still unknown as of 2024. [1]
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 ...
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.
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
The number fitting this definition later became 12407 from November 2009 until at least November 2011, then 13794 as of April 2012, until it appeared in sequence OEIS: A218631 as of 3 November 2012. Since November 2013, that number was 14228, at least until 14 April 2014. [5] In May 2021, the number was 20067.
A visualization of the surreal number tree. In mathematics, the surreal number system is a totally ordered proper class containing not only the real numbers but also infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number.
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