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13244204423 = 64879204137
BaseRepresentation
bin11000101010110101…
…01000010110000111
31021012000022021221202
430111122220112013
5204111004020143
610030113133115
7646126610612
oct142532502607
937160267852
1013244204423
11568700a89a
12269755a19b
131330b65468
148d8d77179
15527addab8
hex3156a8587

13244204423 has 4 divisors (see below), whose sum is σ = 13244473440. Its totient is φ = 13243935408.

The previous prime is 13244204339. The next prime is 13244204443. The reversal of 13244204423 is 32440244231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13244204423 - 230 = 12170462599 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 (13244204443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37190 + ... + 166947.

It is an arithmetic number, because the mean of its divisors is an integer number (3311118360).

Almost surely, 213244204423 is an apocalyptic number.

13244204423 is a deficient number, since it is larger than the sum of its proper divisors (269017).

13244204423 is an equidigital number, since it uses as much as digits as its factorization.

13244204423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269016.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 13244204423 its reverse (32440244231), we get a palindrome (45684448654).

The spelling of 13244204423 in words is "thirteen billion, two hundred forty-four million, two hundred four thousand, four hundred twenty-three".

Divisors: 1 64879 204137 13244204423