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13522503131 = 431425122067
BaseRepresentation
bin11001001100000000…
…10000010111011011
31021220101222100000022
430212000100113123
5210143230100011
610113454101055
7656046244244
oct144600202733
937811870008
1013522503131
11580a111825
1227547aa78b
131376705657
14923cdbccb
155422628db
hex3260105db

13522503131 has 8 divisors (see below), whose sum is σ = 13838577984. Its totient is φ = 13206501000.

The previous prime is 13522503121. The next prime is 13522503133. The reversal of 13522503131 is 13130522531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13522503131 is a prime.

It is a super-2 number, since 2×135225031312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13522503131.

It is not an unprimeable number, because it can be changed into a prime (13522503133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601760 + ... + 623826.

It is an arithmetic number, because the mean of its divisors is an integer number (1729822248).

Almost surely, 213522503131 is an apocalyptic number.

13522503131 is a deficient number, since it is larger than the sum of its proper divisors (316074853).

13522503131 is a wasteful number, since it uses less digits than its factorization.

13522503131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36361.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 13522503131 in words is "thirteen billion, five hundred twenty-two million, five hundred three thousand, one hundred thirty-one".

Divisors: 1 43 14251 22067 612793 948881 314476817 13522503131