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13243210115 = 512772728687
BaseRepresentation
bin11000101010101101…
…10101100110000011
31021011221102210000112
430111112311212003
5204110230210430
610030035541535
7646115300012
oct142526654603
937157383015
1013243210115
1156864a0853
12269715a8ab
1313308a7a05
148d8b98a79
15527994195
hex3155b5983

13243210115 has 16 divisors (see below), whose sum is σ = 16039575552. Its totient is φ = 10496322144.

The previous prime is 13243210111. The next prime is 13243210241. The reversal of 13243210115 is 51101234231.

13243210115 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 13243210115 - 22 = 13243210111 is a prime.

It is a super-2 number, since 2×132432101152 (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 (13243210111) 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, 447302 + ... + 475988.

It is an arithmetic number, because the mean of its divisors is an integer number (1002473472).

Almost surely, 213243210115 is an apocalyptic number.

13243210115 is a deficient number, since it is larger than the sum of its proper divisors (2796365437).

13243210115 is a wasteful number, since it uses less digits than its factorization.

13243210115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29546.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13243210115 its reverse (51101234231), we get a palindrome (64344444346).

The spelling of 13243210115 in words is "thirteen billion, two hundred forty-three million, two hundred ten thousand, one hundred fifteen".

Divisors: 1 5 127 635 727 3635 28687 92329 143435 461645 3643249 18216245 20855449 104277245 2648642023 13243210115