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13439589031895 = 5132157910072729
BaseRepresentation
bin1100001110010010010111…
…1011100001111111010111
31202120210221001211002111212
43003210211323201333113
53230143234243010040
644330021215052035
72554656354620435
oct303444573417727
952523831732455
1013439589031895
114311774703774
12161082321101b
1376646a197300
1434669dd77d55
151848db938d65
hexc3925ee1fd7

13439589031895 has 24 divisors (see below), whose sum is σ = 17474574913200. Its totient is φ = 9918333225216.

The previous prime is 13439589031879. The next prime is 13439589031901. The reversal of 13439589031895 is 59813098593431.

It is not a de Polignac number, because 13439589031895 - 24 = 13439589031879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3702110 + ... + 6370619.

It is an arithmetic number, because the mean of its divisors is an integer number (728107288050).

Almost surely, 213439589031895 is an apocalyptic number.

13439589031895 is a deficient number, since it is larger than the sum of its proper divisors (4034985881305).

13439589031895 is a wasteful number, since it uses less digits than its factorization.

13439589031895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074339 (or 10074326 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 68.

The spelling of 13439589031895 in words is "thirteen trillion, four hundred thirty-nine billion, five hundred eighty-nine million, thirty-one thousand, eight hundred ninety-five".

Divisors: 1 5 13 65 169 845 1579 7895 20527 102635 266851 1334255 10072729 50363645 130945477 654727385 1702291201 8511456005 15904839091 79524195455 206762908183 1033814540915 2687917806379 13439589031895