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26685197315142 = 23171933740858907
BaseRepresentation
bin1100001000101001000011…
…01101001110110001000110
310111111002011021122011002120
412010110201231032301012
511444202241003041032
6132431002125350410
75422641031433022
oct604244155166106
9114432137564076
1026685197315142
118559146225933
122bab92a708406
1311b75320bb932
146837db411382
1531422358a62c
hex184521b4ec46

26685197315142 has 64 divisors (see below), whose sum is σ = 59660543105280. Its totient is φ = 7907669231616.

The previous prime is 26685197315131. The next prime is 26685197315201. The reversal of 26685197315142 is 24151379158662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19776348 + ... + 21082559.

It is an arithmetic number, because the mean of its divisors is an integer number (932195986020).

Almost surely, 226685197315142 is an apocalyptic number.

26685197315142 is an abundant number, since it is smaller than the sum of its proper divisors (32975345790138).

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

26685197315142 is a wasteful number, since it uses less digits than its factorization.

26685197315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40859285.

The product of its digits is 21772800, while the sum is 60.

The spelling of 26685197315142 in words is "twenty-six trillion, six hundred eighty-five billion, one hundred ninety-seven million, three hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 19 34 38 51 57 102 114 323 337 646 674 969 1011 1938 2022 5729 6403 11458 12806 17187 19209 34374 38418 108851 217702 326553 653106 40858907 81717814 122576721 245153442 694601419 776319233 1389202838 1552638466 2083804257 2328957699 4167608514 4657915398 13197426961 13769451659 26394853922 27538903318 39592280883 41308354977 79184561766 82616709954 234080678203 261619581521 468161356406 523239163042 702242034609 784858744563 1404484069218 1569717489126 4447532885857 8895065771714 13342598657571 26685197315142