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13140524664 = 2332182507287
BaseRepresentation
bin11000011110011110…
…00111111001111000
31020220210012211001200
430033033013321320
5203402433242124
610011531014200
7643430421351
oct141717077170
936823184050
1013140524664
115633535743
12266889a360
131315533aa7
148c92a8d28
1551d95dbc9
hex30f3c7e78

13140524664 has 24 divisors (see below), whose sum is σ = 35588921160. Its totient is φ = 4380174864.

The previous prime is 13140524597. The next prime is 13140524669. The reversal of 13140524664 is 46642504131.

13140524664 is a `hidden beast` number, since 1 + 3 + 1 + 405 + 246 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140524669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91253572 + ... + 91253715.

It is an arithmetic number, because the mean of its divisors is an integer number (1482871715).

Almost surely, 213140524664 is an apocalyptic number.

It is an amenable number.

13140524664 is an abundant number, since it is smaller than the sum of its proper divisors (22448396496).

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

13140524664 is a wasteful number, since it uses less digits than its factorization.

13140524664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182507299 (or 182507292 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 13140524664 in words is "thirteen billion, one hundred forty million, five hundred twenty-four thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 182507287 365014574 547521861 730029148 1095043722 1460058296 1642565583 2190087444 3285131166 4380174888 6570262332 13140524664