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18206069341 = 101631791407
BaseRepresentation
bin10000111101001010…
…101001001001011101
31201222210221011000111
4100331022221021131
5244241223204331
612210323130021
71213110015235
oct207512511135
951883834014
1018206069341
1177a29403a9
123641213911
131941b312c5
14c49d4ccc5
15718510db1
hex43d2a925d

18206069341 has 4 divisors (see below), whose sum is σ = 18207870912. Its totient is φ = 18204267772.

The previous prime is 18206069327. The next prime is 18206069377. The reversal of 18206069341 is 14396060281.

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: 14396060281 = 139103568779.

It is a cyclic number.

It is not a de Polignac number, because 18206069341 - 27 = 18206069213 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18206069294 and 18206069303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18206069381) 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 3 ways as a sum of consecutive naturals, for example, 885541 + ... + 905866.

It is an arithmetic number, because the mean of its divisors is an integer number (4551967728).

Almost surely, 218206069341 is an apocalyptic number.

It is an amenable number.

18206069341 is a deficient number, since it is larger than the sum of its proper divisors (1801571).

18206069341 is a wasteful number, since it uses less digits than its factorization.

18206069341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801570.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 18206069341 in words is "eighteen billion, two hundred six million, sixty-nine thousand, three hundred forty-one".

Divisors: 1 10163 1791407 18206069341