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13003717 = 23565379
BaseRepresentation
bin110001100110…
…101111000101
3220110122202011
4301212233011
511312104332
61142414221
7215346466
oct61465705
926418664
1013003717
117381981
124431371
132903b0c
141a26d6d
15121ce47
hexc66bc5

13003717 has 4 divisors (see below), whose sum is σ = 13569120. Its totient is φ = 12438316.

The previous prime is 13003703. The next prime is 13003741. The reversal of 13003717 is 71730031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71730031 = 233118697.

It is a cyclic number.

It is not a de Polignac number, because 13003717 - 211 = 13001669 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 (13003747) 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 3 ways as a sum of consecutive naturals, for example, 282667 + ... + 282712.

It is an arithmetic number, because the mean of its divisors is an integer number (3392280).

Almost surely, 213003717 is an apocalyptic number.

It is an amenable number.

13003717 is a deficient number, since it is larger than the sum of its proper divisors (565403).

13003717 is an equidigital number, since it uses as much as digits as its factorization.

13003717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565402.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 13003717 is about 3606.0666937815. The cubic root of 13003717 is about 235.1558766649.

Adding to 13003717 its reverse (71730031), we get a palindrome (84733748).

The spelling of 13003717 in words is "thirteen million, three thousand, seven hundred seventeen".

Divisors: 1 23 565379 13003717