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85186289132 = 22723912729571
BaseRepresentation
bin100111101010101111…
…1111001110111101100
322010212210000212012122
41033111133321313230
52343430142223012
6103044541452112
76103665340040
oct1172537716754
9263783025178
1085186289132
113314449194a
1214614871038
13805775a059
1441a1890020
152338971e72
hex13d57f9dec

85186289132 has 24 divisors (see below), whose sum is σ = 171085447680. Its totient is φ = 36355651920.

The previous prime is 85186289107. The next prime is 85186289171. The reversal of 85186289132 is 23198268158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6358094 + ... + 6371477.

It is an arithmetic number, because the mean of its divisors is an integer number (7128560320).

Almost surely, 285186289132 is an apocalyptic number.

It is an amenable number.

85186289132 is an abundant number, since it is smaller than the sum of its proper divisors (85899158548).

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

85186289132 is a wasteful number, since it uses less digits than its factorization.

85186289132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12729821 (or 12729819 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 53.

The spelling of 85186289132 in words is "eighty-five billion, one hundred eighty-six million, two hundred eighty-nine thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 239 478 956 1673 3346 6692 12729571 25459142 50918284 89106997 178213994 356427988 3042367469 6084734938 12169469876 21296572283 42593144566 85186289132