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26311000842 = 23271945724049
BaseRepresentation
bin11000100000010000…
…100000001100001010
32111220122210022212200
4120200100200030022
5412341104011332
620030452021030
71621003550160
oct304020401412
974818708780
1026311000842
11101819683a5
125123601776
132634023769
1413b852d230
15a3ed3717c
hex62042030a

26311000842 has 96 divisors (see below), whose sum is σ = 68732976000. Its totient is φ = 7105895424.

The previous prime is 26311000841. The next prime is 26311000871. The reversal of 26311000842 is 24800011362.

It is not an unprimeable number, because it can be changed into a prime (26311000841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1082034 + ... + 1106082.

It is an arithmetic number, because the mean of its divisors is an integer number (715968500).

Almost surely, 226311000842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26311000842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34366488000).

26311000842 is an abundant number, since it is smaller than the sum of its proper divisors (42421975158).

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

26311000842 is a wasteful number, since it uses less digits than its factorization.

26311000842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24540 (or 24537 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 26311000842 in words is "twenty-six billion, three hundred eleven million, eight hundred forty-two", and thus it is an aban number.

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 266 342 399 457 798 914 1197 1371 2394 2742 3199 4113 6398 8226 8683 9597 17366 19194 24049 26049 28791 48098 52098 57582 60781 72147 78147 121562 144294 156294 168343 182343 216441 336686 364686 432882 456931 505029 547029 913862 1010058 1094058 1370793 1515087 2741586 3030174 3198517 4112379 6397034 8224758 9595551 10990393 19191102 21980786 28786653 32971179 57573306 65942358 76932751 98913537 153865502 197827074 208817467 230798253 417634934 461596506 626452401 692394759 1252904802 1384789518 1461722269 1879357203 2923444538 3758714406 4385166807 8770333614 13155500421 26311000842