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13531200131 = 90727115503
BaseRepresentation
bin11001001101000010…
…11011101010000011
31021221000100012001102
430212201123222003
5210202441401011
610114404325015
7656213206031
oct144641335203
937830305042
1013531200131
115814011a29
1227576a376b
13137845c0c7
14925123551
15542dce73b
hex32685ba83

13531200131 has 8 divisors (see below), whose sum is σ = 13553577984. Its totient is φ = 13508840520.

The previous prime is 13531200101. The next prime is 13531200143. The reversal of 13531200131 is 13100213531.

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-13531200131 is a prime.

It is a super-2 number, since 2×135312001312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531200101) 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, 2456126 + ... + 2461628.

It is an arithmetic number, because the mean of its divisors is an integer number (1694197248).

Almost surely, 213531200131 is an apocalyptic number.

13531200131 is a deficient number, since it is larger than the sum of its proper divisors (22377853).

13531200131 is an equidigital number, since it uses as much as digits as its factorization.

13531200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9121.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 13531200131 its reverse (13100213531), we get a palindrome (26631413662).

The spelling of 13531200131 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, one hundred thirty-one".

Divisors: 1 907 2711 5503 2458877 4991221 14918633 13531200131