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56426238 = 232111953283
BaseRepresentation
bin1101011100111…
…1111011111110
310221011202020200
43113033323332
5103421114423
65333224330
71253420661
oct327177376
9127152220
1056426238
112993a960
1216a920a6
13b8c840b
1476cb6d8
154e48d43
hex35cfefe

56426238 has 96 divisors (see below), whose sum is σ = 143544960. Its totient is φ = 15837120.

The previous prime is 56426197. The next prime is 56426297. The reversal of 56426238 is 83262465.

56426238 is a `hidden beast` number, since 5 + 642 + 6 + 2 + 3 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199245 + ... + 199527.

It is an arithmetic number, because the mean of its divisors is an integer number (1495260).

Almost surely, 256426238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56426238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71772480).

56426238 is an abundant number, since it is smaller than the sum of its proper divisors (87118722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56426238 is a wasteful number, since it uses less digits than its factorization.

56426238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 371 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 56426238 is about 7511.7400114754. The cubic root of 56426238 is about 383.5544555780.

The spelling of 56426238 in words is "fifty-six million, four hundred twenty-six thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 19 22 33 38 53 57 66 99 106 114 159 171 198 209 283 318 342 418 477 566 583 627 849 954 1007 1166 1254 1698 1749 1881 2014 2547 3021 3113 3498 3762 5094 5247 5377 6042 6226 9063 9339 10494 10754 11077 14999 16131 18126 18678 22154 28017 29998 32262 33231 44997 48393 56034 59147 66462 89994 96786 99693 118294 134991 164989 177441 199386 269982 284981 329978 354882 494967 532323 569962 854943 989934 1064646 1484901 1709886 2564829 2969802 3134791 5129658 6269582 9404373 18808746 28213119 56426238