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18134403069440 = 295721753281571
BaseRepresentation
bin1000001111110001111101…
…01001110011011000000000
32101012122001201201000002102
410013320332221303120000
54334103224141210230
6102322455121205532
73551111261532200
oct407707651633000
971178051630072
1018134403069440
115861836851649
12204a69aa908a8
13a170b3bc0328
144699d1950400
15216ab6560045
hex107e3ea73600

18134403069440 has 960 divisors, whose sum is σ = 54854611276608. Its totient is φ = 5710911897600.

The previous prime is 18134403069439. The next prime is 18134403069553. The reversal of 18134403069440 is 4496030443181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31759024355 + ... + 31759024925.

Almost surely, 218134403069440 is an apocalyptic number.

18134403069440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18134403069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27427305638304).

18134403069440 is an abundant number, since it is smaller than the sum of its proper divisors (36720208207168).

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

18134403069440 is a wasteful number, since it uses less digits than its factorization.

18134403069440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 18134403069440 in words is "eighteen trillion, one hundred thirty-four billion, four hundred three million, sixty-nine thousand, four hundred forty".