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13531135534 = 276115844421
BaseRepresentation
bin11001001101000010…
…01011111000101110
31021221000012220102221
430212201023320232
5210202432314114
610114403105554
7656212516510
oct144641137056
937830186387
1013531135534
115813a78444
1227576722ba
131378438897
14925107bb0
15542dba524
hex32684be2e

13531135534 has 16 divisors (see below), whose sum is σ = 23576499936. Its totient is φ = 5703991200.

The previous prime is 13531135523. The next prime is 13531135537. The reversal of 13531135534 is 43553113531.

It is a happy number.

13531135534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13531135534.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7921357 + ... + 7923064.

It is an arithmetic number, because the mean of its divisors is an integer number (1473531246).

Almost surely, 213531135534 is an apocalyptic number.

13531135534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13531135534 is a deficient number, since it is larger than the sum of its proper divisors (10045364402).

13531135534 is a wasteful number, since it uses less digits than its factorization.

13531135534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15844491.

The product of its digits is 40500, while the sum is 34.

The spelling of 13531135534 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-four".

Divisors: 1 2 7 14 61 122 427 854 15844421 31688842 110910947 221821894 966509681 1933019362 6765567767 13531135534