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18089102304 = 25337131912109
BaseRepresentation
bin10000110110001100…
…011100101111100000
31201200122211121102000
4100312030130233200
5244021302233204
612150544124000
71210156555410
oct206614345740
951618747360
1018089102304
117742910329
12360a006600
131923829a40
14c385c2640
1570d109039
hex43631cbe0

18089102304 has 384 divisors, whose sum is σ = 68358528000. Its totient is φ = 4519286784.

The previous prime is 18089102287. The next prime is 18089102347. The reversal of 18089102304 is 40320198081.

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, 1487802 + ... + 1499910.

It is an arithmetic number, because the mean of its divisors is an integer number (178017000).

Almost surely, 218089102304 is an apocalyptic number.

18089102304 is a gapful number since it is divisible by the number (14) 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 18089102304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34179264000).

18089102304 is an abundant number, since it is smaller than the sum of its proper divisors (50269425696).

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

18089102304 is a wasteful number, since it uses less digits than its factorization.

18089102304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12167 (or 12153 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 18089102304 in words is "eighteen billion, eighty-nine million, one hundred two thousand, three hundred four".