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18028614806 = 279114105157
BaseRepresentation
bin10000110010100101…
…101101010010010110
31201112110000112011022
4100302211231102112
5243410311133211
612140543441142
71205523461126
oct206245552226
951473015138
1018028614806
117711757164
1235b18b61b2
13191413bc17
14c30558c86
15707b5bbdb
hex43296d496

18028614806 has 8 divisors (see below), whose sum is σ = 27385237920. Its totient is φ = 8900202168.

The previous prime is 18028614787. The next prime is 18028614809. The reversal of 18028614806 is 60841682081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028614809) 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, 57052421 + ... + 57052736.

It is an arithmetic number, because the mean of its divisors is an integer number (3423154740).

Almost surely, 218028614806 is an apocalyptic number.

18028614806 is a deficient number, since it is larger than the sum of its proper divisors (9356623114).

18028614806 is a wasteful number, since it uses less digits than its factorization.

18028614806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114105238.

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 18028614806 in words is "eighteen billion, twenty-eight million, six hundred fourteen thousand, eight hundred six".

Divisors: 1 2 79 158 114105157 228210314 9014307403 18028614806