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13531135535 = 52706227107
BaseRepresentation
bin11001001101000010…
…01011111000101111
31021221000012220102222
430212201023320233
5210202432314120
610114403105555
7656212516511
oct144641137057
937830186388
1013531135535
115813a78445
1227576722bb
131378438898
14925107bb1
15542dba525
hex32684be2f

13531135535 has 4 divisors (see below), whose sum is σ = 16237362648. Its totient is φ = 10824908424.

The previous prime is 13531135523. The next prime is 13531135537. The reversal of 13531135535 is 53553113531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53553113531 = 151354656381.

It is a cyclic number.

It is not a de Polignac number, because 13531135535 - 220 = 13530086959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13531135495 and 13531135504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531135537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353113549 + ... + 1353113558.

It is an arithmetic number, because the mean of its divisors is an integer number (4059340662).

Almost surely, 213531135535 is an apocalyptic number.

13531135535 is a deficient number, since it is larger than the sum of its proper divisors (2706227113).

13531135535 is an equidigital number, since it uses as much as digits as its factorization.

13531135535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706227112.

The product of its digits is 50625, while the sum is 35.

The spelling of 13531135535 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-five".

Divisors: 1 5 2706227107 13531135535