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13235323405 = 523411130741
BaseRepresentation
bin11000101001110001…
…10000001000001101
31021011101121002111011
430110320300020031
5204101220322110
610025154525221
7645661251463
oct142470601015
937141532434
1013235323405
115681aa4407
122694596811
13132c076015
148d7b04833
15526e3748a
hex314e3020d

13235323405 has 8 divisors (see below), whose sum is σ = 15889186584. Its totient is φ = 10583726400.

The previous prime is 13235323403. The next prime is 13235323421. The reversal of 13235323405 is 50432353231.

It can be written as a sum of positive squares in 4 ways, for example, as 428779849 + 12806543556 = 20707^2 + 113166^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13235323405 - 21 = 13235323403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13235323403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553666 + ... + 577075.

It is an arithmetic number, because the mean of its divisors is an integer number (1986148323).

Almost surely, 213235323405 is an apocalyptic number.

It is an amenable number.

13235323405 is a deficient number, since it is larger than the sum of its proper divisors (2653863179).

13235323405 is a wasteful number, since it uses less digits than its factorization.

13235323405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133087.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 13235323405 its reverse (50432353231), we get a palindrome (63667676636).

The spelling of 13235323405 in words is "thirteen billion, two hundred thirty-five million, three hundred twenty-three thousand, four hundred five".

Divisors: 1 5 2341 11705 1130741 5653705 2647064681 13235323405