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13523868755 = 553487110477
BaseRepresentation
bin11001001100001010…
…11101110001010011
31021220111112201021222
430212011131301103
5210144102300010
610113543235255
7656063662535
oct144605356123
937814481258
1013523868755
11580a964841
122755148b2b
131376a93107
14924175855
15542432355
hex32615dc53

13523868755 has 16 divisors (see below), whose sum is σ = 16539816384. Its totient is φ = 10611768960.

The previous prime is 13523868751. The next prime is 13523868763. The reversal of 13523868755 is 55786832531.

13523868755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13523868755 - 22 = 13523868751 is a prime.

It is a super-2 number, since 2×135238687552 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13523868697 and 13523868706.

It is not an unprimeable number, because it can be changed into a prime (13523868751) 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, 1285577 + ... + 1296053.

It is an arithmetic number, because the mean of its divisors is an integer number (1033738524).

Almost surely, 213523868755 is an apocalyptic number.

13523868755 is a deficient number, since it is larger than the sum of its proper divisors (3015947629).

13523868755 is a wasteful number, since it uses less digits than its factorization.

13523868755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406.

The product of its digits is 6048000, while the sum is 53.

The spelling of 13523868755 in words is "thirteen billion, five hundred twenty-three million, eight hundred sixty-eight thousand, seven hundred fifty-five".

Divisors: 1 5 53 265 4871 10477 24355 52385 258163 555281 1290815 2776405 51033467 255167335 2704773751 13523868755