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18008622834 = 233001437139
BaseRepresentation
bin10000110001011001…
…011100011011110010
31201111001101211022220
4100301121130123302
5243340201412314
612134551141510
71205161524366
oct206131343362
951431354286
1018008622834
117701441974
1235a7074896
13190cc5c357
14c2ba332a6
1570600d3a9
hex43165c6f2

18008622834 has 8 divisors (see below), whose sum is σ = 36017245680. Its totient is φ = 6002874276.

The previous prime is 18008622833. The next prime is 18008622851. The reversal of 18008622834 is 43822680081.

It is a happy number.

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

18008622834 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18008622833) 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, 1500718564 + ... + 1500718575.

It is an arithmetic number, because the mean of its divisors is an integer number (4502155710).

Almost surely, 218008622834 is an apocalyptic number.

18008622834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18008622834 is a wasteful number, since it uses less digits than its factorization.

18008622834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001437144.

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 18008622834 in words is "eighteen billion, eight million, six hundred twenty-two thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 3001437139 6002874278 9004311417 18008622834