50 (number): Difference between revisions - Wikipedia
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Line 1: {{Infobox number | number = 50 | numeral = quinquagesimal | divisor = 1, 2, 5, 10, 25, 50 | unicode = ↆ |lang1=[[Armenian numerals|Armenian]]|lang1 symbol=Ծ|lang2=[[Hebrew numerals|Hebrew]]|lang2 symbol=<span style="font-size:150%;">נ / ן</span>|lang3=[[Babylonian cuneiform numerals|Babylonian numeral]]|lang3 symbol=<span style="font-size:200%;">𒐐</span>|lang4=[[Egyptian numerals|Egyptian hieroglyph]]|lang4 symbol=<span style="font-size:200%;">𓎊</span>}}
==In mathematics== [[File:square-sum-50.png|thumb|50 as the sum of two non-zero squares]] Fifty is the smallest number that is the sum of two non-zero [[square numbers]] in two distinct ways: 50 = 1<sup>2</sup> + 7<sup>2</sup> = 5<sup>2</sup> + 5<sup>2</sup> ( 50 is a [[Stirling number of the first kind]]: <math>\left[{5\atop 2}\right] = 50</math> and also a [[Narayana number]]: <math>\operatorname{N}(6, 3) = \operatorname{N}(6, 4) = 50</math> |