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18090702000 = 243453724353
BaseRepresentation
bin10000110110010010…
…100011010010110000
31201200202211212210000
4100312102203102300
5244022204431000
612151042310000
71210206300300
oct206622432260
951622755700
1018090702000
117743803198
12360a658300
131923c69bc7
14c388bb600
1570d323000
hex4364a34b0

18090702000 has 1200 divisors, whose sum is σ = 79248847392. Its totient is φ = 3962649600.

The previous prime is 18090701999. The next prime is 18090702013. The reversal of 18090702000 is 20709081.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 341333974 + ... + 341334026.

Almost surely, 218090702000 is an apocalyptic number.

18090702000 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 18090702000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39624423696).

18090702000 is an abundant number, since it is smaller than the sum of its proper divisors (61158145392).

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

18090702000 is a wasteful number, since it uses less digits than its factorization.

18090702000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 18090702000 in words is "eighteen billion, ninety million, seven hundred two thousand".