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18133408713 = 37863495653
BaseRepresentation
bin10000111000110101…
…011101101111001001
31201210202012121101010
4100320311131233021
5244114123034323
612155205514133
71211235300540
oct207065355711
951722177333
1018133408713
1177659223a2
123620a12949
13192ca70754
14c40437157
15711e5bc93
hex438d5dbc9

18133408713 has 8 divisors (see below), whose sum is σ = 27631860928. Its totient is φ = 10361947824.

The previous prime is 18133408693. The next prime is 18133408747. The reversal of 18133408713 is 31780433181.

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

It is not a de Polignac number, because 18133408713 - 25 = 18133408681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18133408763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431747806 + ... + 431747847.

It is an arithmetic number, because the mean of its divisors is an integer number (3453982616).

Almost surely, 218133408713 is an apocalyptic number.

It is an amenable number.

18133408713 is a deficient number, since it is larger than the sum of its proper divisors (9498452215).

18133408713 is an equidigital number, since it uses as much as digits as its factorization.

18133408713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863495663.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 18133408713 in words is "eighteen billion, one hundred thirty-three million, four hundred eight thousand, seven hundred thirteen".

Divisors: 1 3 7 21 863495653 2590486959 6044469571 18133408713