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13258132885 = 525457104161
BaseRepresentation
bin11000101100011111…
…10000110110010101
31021012222111221012201
430112033300312111
5204123040223020
610031331444501
7646356161434
oct142617606625
937188457181
1013258132885
115693963518
1226a0156731
131333a0115a
148dab6111b
15528e40a0a
hex3163f0d95

13258132885 has 8 divisors (see below), whose sum is σ = 15910537176. Its totient is φ = 10605987840.

The previous prime is 13258132847. The next prime is 13258132891. The reversal of 13258132885 is 58823185231.

It can be written as a sum of positive squares in 4 ways, for example, as 5058001 + 13253074884 = 2249^2 + 115122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13258132885 - 227 = 13123915157 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 75205 + ... + 179365.

It is an arithmetic number, because the mean of its divisors is an integer number (1988817147).

Almost surely, 213258132885 is an apocalyptic number.

It is an amenable number.

13258132885 is a deficient number, since it is larger than the sum of its proper divisors (2652404291).

13258132885 is a wasteful number, since it uses less digits than its factorization.

13258132885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129623.

The product of its digits is 460800, while the sum is 46.

The spelling of 13258132885 in words is "thirteen billion, two hundred fifty-eight million, one hundred thirty-two thousand, eight hundred eighty-five".

Divisors: 1 5 25457 104161 127285 520805 2651626577 13258132885