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18082280160 = 2533573119289
BaseRepresentation
bin10000110101110010…
…011011001011100000
31201200012000000012000
4100311302123023200
5244013030431120
612150142004000
71210044562650
oct206562331340
951605000160
1018082280160
117739a8079a
123607876600
1319222ab779
14c37728360
1570c70c990
hex435c9b2e0

18082280160 has 384 divisors, whose sum is σ = 74666188800. Its totient is φ = 3999559680.

The previous prime is 18082280147. The next prime is 18082280201. The reversal of 18082280160 is 6108228081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 927796 + ... + 947084.

It is an arithmetic number, because the mean of its divisors is an integer number (194443200).

Almost surely, 218082280160 is an apocalyptic number.

18082280160 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 18082280160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37333094400).

18082280160 is an abundant number, since it is smaller than the sum of its proper divisors (56583908640).

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

18082280160 is a wasteful number, since it uses less digits than its factorization.

18082280160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351 (or 19337 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 18082280160 in words is "eighteen billion, eighty-two million, two hundred eighty thousand, one hundred sixty".