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20326768000 = 275372112357
BaseRepresentation
bin10010111011100100…
…011101110110000000
31221110121101210200021
4102323210131312000
5313112123034000
613201001103224
71316500451200
oct227344356600
957417353607
1020326768000
118690a26720
123b33487b14
131bbc2b8596
14dab866400
157de7b611a
hex4bb91dd80

20326768000 has 384 divisors, whose sum is σ = 64160048160. Its totient is φ = 6332928000.

The previous prime is 20326767971. The next prime is 20326768009. The reversal of 20326768000 is 86762302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20326768009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8622822 + ... + 8625178.

Almost surely, 220326768000 is an apocalyptic number.

20326768000 is a gapful number since it is divisible by the number (20) 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 20326768000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32080024080).

20326768000 is an abundant number, since it is smaller than the sum of its proper divisors (43833280160).

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

20326768000 is a wasteful number, since it uses less digits than its factorization.

20326768000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 20326768000 in words is "twenty billion, three hundred twenty-six million, seven hundred sixty-eight thousand".