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18300798426 = 2317317630827
BaseRepresentation
bin10001000010110100…
…000000010111011010
31202020102011212220010
4101002310000113122
5244440001022201
612223545342350
71215340135311
oct210264002732
952212155803
1018300798426
1178413617a9
123668a979b6
13195864a911
14c5876b278
157219c3bd6
hex442d005da

18300798426 has 16 divisors (see below), whose sum is σ = 36813168864. Its totient is φ = 6065004144.

The previous prime is 18300798407. The next prime is 18300798427. The reversal of 18300798426 is 62489700381.

It is not an unprimeable number, because it can be changed into a prime (18300798427) 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, 8814376 + ... + 8816451.

It is an arithmetic number, because the mean of its divisors is an integer number (2300823054).

Almost surely, 218300798426 is an apocalyptic number.

18300798426 is an abundant number, since it is smaller than the sum of its proper divisors (18512370438).

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

18300798426 is a wasteful number, since it uses less digits than its factorization.

18300798426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17631005.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 18300798426 in words is "eighteen billion, three hundred million, seven hundred ninety-eight thousand, four hundred twenty-six".

Divisors: 1 2 3 6 173 346 519 1038 17630827 35261654 52892481 105784962 3050133071 6100266142 9150399213 18300798426