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20342413 = 713223543
BaseRepresentation
bin100110110011…
…0011010001101
31102021111112201
41031212122031
520201424123
62004001501
7334623220
oct115463215
942244481
1020342413
1110534613
126990291
1342a3240
1429b75b7
151bbc5ad
hex136668d

20342413 has 8 divisors (see below), whose sum is σ = 25036928. Its totient is φ = 16095024.

The previous prime is 20342411. The next prime is 20342429. The reversal of 20342413 is 31424302.

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

It is a cyclic number.

It is not a de Polignac number, because 20342413 - 21 = 20342411 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342411) 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, 111681 + ... + 111862.

It is an arithmetic number, because the mean of its divisors is an integer number (3129616).

Almost surely, 220342413 is an apocalyptic number.

It is an amenable number.

20342413 is a deficient number, since it is larger than the sum of its proper divisors (4694515).

20342413 is a wasteful number, since it uses less digits than its factorization.

20342413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223563.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20342413 is about 4510.2564228656. The cubic root of 20342413 is about 272.9820908072.

Adding to 20342413 its reverse (31424302), we get a palindrome (51766715).

The spelling of 20342413 in words is "twenty million, three hundred forty-two thousand, four hundred thirteen".

Divisors: 1 7 13 91 223543 1564801 2906059 20342413