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45 as the difference of two nonzero squares (in orange) 45 is an odd number and a Størmer number . 45 degrees is half of a right angle. It is also the smallest positive number that can be expressed as the difference of two nonzero squares in more than two ways: 7 2 − 2 2 {\displaystyle 7^{2}-2^{2}} , 9 2 − 6 2 {\displaystyle 9^{2}-6^{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.
It is the tenth 10-happy number, [1] and the fourth octahedral number. [2] It is a square-prime of the form p 2 × q, and fourth of this form and of the form 2 2 × q, where q is a higher prime. It is the first member of the first cluster of two square-primes; of the form p 2 × q, specifically 2 2 × 11 = 44 and 3 2 × 5 = 45.
The symbol # is known variously in English-speaking regions as the number sign, [1] hash, [2] or pound sign. [3] The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .
47 (forty-seven) is the natural number following 46 and preceding 48. It is a prime number. It is the adopted favorite number of Pomona College, a liberal arts college in Southern California, whose alumni have added cultural references to it in numerous places, including many Star Trek episodes.
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42 is a pronic number, [1] an abundant number [2] as well as a highly abundant number, [3] a practical number, [4] an admirable number, [5] and a Catalan number. [6]The 42-sided tetracontadigon is the largest such regular polygon that can only tile a vertex alongside other regular polygons, without tiling the plane.
Here’s what you need to know about angel number 1212. Angel number 1212 meaning and significance. Seeing angel number 1212 suggests that you’re heading toward something harmonious. “The ...