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188996741968320 = 2637511135693319
BaseRepresentation
bin101010111110010000111011…
…101010110011000111000000
3220210011220121220102020000000
4222332100323222303013000
5144233010311420441240
61505543523223000000
754544364311242426
oct5276207352630700
9823156556366000
10188996741968320
1155247082784a80
1219244a02599000
13815c415b8b240
1434956c38b9116
1516cb38b872430
hexabe43bab31c0

188996741968320 has 1792 divisors, whose sum is σ = 794604529152000. Its totient is φ = 42205928325120.

The previous prime is 188996741968297. The next prime is 188996741968361. The reversal of 188996741968320 is 23869147699881.

188996741968320 is a `hidden beast` number, since 1 + 8 + 89 + 9 + 67 + 419 + 68 + 3 + 2 + 0 = 666.

188996741968320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 188996741968320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 56943879621 + ... + 56943882939.

It is an arithmetic number, because the mean of its divisors is an integer number (443417706000).

Almost surely, 2188996741968320 is an apocalyptic number.

188996741968320 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 188996741968320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397302264576000).

188996741968320 is an abundant number, since it is smaller than the sum of its proper divisors (605607787183680).

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

188996741968320 is a wasteful number, since it uses less digits than its factorization.

188996741968320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 2257403904, while the sum is 81.

The spelling of 188996741968320 in words is "one hundred eighty-eight trillion, nine hundred ninety-six billion, seven hundred forty-one million, nine hundred sixty-eight thousand, three hundred twenty".