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13531145051 = 1937169311369
BaseRepresentation
bin11001001101000010…
…01110001101011011
31021221000020101111102
430212201032031123
5210202433120201
610114403222015
7656212556324
oct144641161533
937830211442
1013531145051
115813a84606
12275767790b
131378440008
1492510b44b
15542dbd26b
hex32684e35b

13531145051 has 16 divisors (see below), whose sum is σ = 14638192800. Its totient is φ = 12464057088.

The previous prime is 13531144999. The next prime is 13531145071. The reversal of 13531145051 is 15054113531.

13531145051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13531145051 - 26 = 13531144987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531145071) 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 15 ways as a sum of consecutive naturals, for example, 1184495 + ... + 1195863.

It is an arithmetic number, because the mean of its divisors is an integer number (914887050).

Almost surely, 213531145051 is an apocalyptic number.

13531145051 is a deficient number, since it is larger than the sum of its proper divisors (1107047749).

13531145051 is a wasteful number, since it uses less digits than its factorization.

13531145051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 13531145051 its reverse (15054113531), we get a palindrome (28585258582).

The spelling of 13531145051 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-five thousand, fifty-one".

Divisors: 1 19 37 703 1693 11369 32167 62641 216011 420653 1190179 7992407 19247717 365706623 712165529 13531145051