View source for 244 (number)

'''244''' ('''two hundred [and] forty-four''') is the [[Natural number|natural number]] following [[243 (number)|243]] and preceding [[245 (number)|245]].
{{Infobox number
| number = 244
| prime = no
}}

Additionally, 244 is:
*the sum of two nonzero [[Fifth power (algebra)|fifth powers]] ({{nowrap|1=244 = 1 + 243 = 1<sup>5</sup> + 3<sup>5</sup>}}).<ref>{{Cite OEIS|A020896|name=Positive numbers n such that n = x^5 + y^5 has a solution in nonzero integers x, y}}</ref>
*palindromic in bases 3 (100001<sub>3</sub>), 11 (202<sub>11</sub>), 60 (44<sub>60</sub>), 121 (22<sub>121</sub>), 243 (11<sub>243</sub>).
*a Harshad number in bases 3, 9, 11, 61, 62, 81, 121, 122, 123 and 184.
*the second anti-perfect number, meaning that reversing the digits of the proper divisors of 244 and adding the results gives 244 back again.<ref>{{Cite OEIS|A072228|name=Numbers n such that n = the sum of the reverses of the proper divisors of n}}</ref>
*part of the sequence 1, 2, 4, 8, 61, 221, 244, ... in which each number is formed by reversing the digits of the double of the previous number.<ref>{{Cite OEIS|A036447|name=Double and reverse digits}}</ref>
*the number of non-isomorphic set-systems of weight 8

==References==
{{reflist|30em}}


[[Category:Integers]]

{{Sourceattribution|244 (number)}}