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86307087657490 = 257432666824443
BaseRepresentation
bin10011100111111011101111…
…010011010010101000010010
3102022120212200022222220112021
4103213323233103102220102
542303023403420014430
6503320532333522054
724115324042501510
oct2347735723225022
9368525608886467
1086307087657490
11255556a2a63867
12981aa8504332a
13392095353848b
1417453dcd3d4b0
159ea0a341207a
hex4e7eef4d2a12

86307087657490 has 48 divisors (see below), whose sum is σ = 181771008838848. Its totient is φ = 28902838614048.

The previous prime is 86307087657317. The next prime is 86307087657493. The reversal of 86307087657490 is 9475678070368.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is not an unprimeable number, because it can be changed into a prime (86307087657493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333282792 + ... + 333541651.

It is an arithmetic number, because the mean of its divisors is an integer number (3786896017476).

Almost surely, 286307087657490 is an apocalyptic number.

86307087657490 is an abundant number, since it is smaller than the sum of its proper divisors (95463921181358).

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

86307087657490 is a wasteful number, since it uses less digits than its factorization.

86307087657490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666824543 (or 666824500 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 70.

The spelling of 86307087657490 in words is "eighty-six trillion, three hundred seven billion, eighty-seven million, six hundred fifty-seven thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 43 70 86 215 301 430 602 1505 1849 3010 3698 9245 12943 18490 25886 64715 129430 666824443 1333648886 3334122215 4667771101 6668244430 9335542202 23338855505 28673451049 46677711010 57346902098 143367255245 200714157343 286734510490 401428314686 1003570786715 1232958395107 2007141573430 2465916790214 6164791975535 8630708765749 12329583951070 17261417531498 43153543828745 86307087657490