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450 (other)
450 may refer to: In general * 450 (number), a number in the 400s range * 450 AD (CDL, CCCCL), a year in the Common Era * 450s AD, a decade in the Common Era * 450 BC, a year Before the Common Era * 450s BC, a decade Before the Common Era Places * Highway 450, any of several highways numbered 450; see List of highways numbered 450 * Area code 450, a telephone area code for the off-island suburbs of Montreal, Quebec, Canada * 450 Brigitta (Asteroid #450) the asteroid Brigitta, the 450th asteroid registered * Shawnee Heights USD 450, Tecumseh, Kansas, USA; unified school district #459 .450 calibre ammunition * .450 Ackley Magnum, rifle longarm ammo * .450 Adams, revolver handgun ammo * .450 Black Powder Express, rifle longarm ammo * .450 Bushmaster, rifle longarm ammo * .450 Marlin, rifle longarm ammo * .450 Nitro Express, rifle longarm ammo * .450 No 2 Nitro Express, rifle longarm ammo * .450 Revolver, handgun ammo * .450 Rigby, rifle longarm ammo Military units * No. 450 Squadro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
450 (number)
400 (four hundred) is the natural number following 399 and preceding 401. Mathematical properties A circle is divided into 400 grads. Integers from 401 to 499 400s 401 401 is a prime number, tetranacci number, Chen prime, prime index prime * Eisenstein prime with no imaginary part * Sum of seven consecutive primes (43 + 47 + 53 + 59 + 61 + 67 + 71) * Sum of nine consecutive primes (29 + 31 + 37 + 41 + 43 + 47 + 53 + 59 + 61) * Mertens function returns 0, * Member of the Mian–Chowla sequence. 402 402 = 2 × 3 × 67, sphenic number, nontotient, Harshad number, number of graphs with 8 nodes and 9 edges *HTTP status code for "Payment Required". *The area code for Nebraska. 403 403 = 13 × 31, heptagonal number, Mertens function returns 0. * First number that is the product of an emirp pair. * HTTP 403, the status code for "Forbidden" * Also in the name of a retirement plan in the United States, 403(b). * The area code for southern Alberta. 404 404 = 22 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |