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28339168000 = 285311213563
BaseRepresentation
bin11010011001001001…
…010110001100000000
32201011000010220011211
4122121021112030000
5431014311334000
621004022415504
72022161645023
oct323111261400
981130126154
1028339168000
11110227a3400
1255aa891594
132898280780
14152ba3b1ba
15b0ce107ba
hex699256300

28339168000 has 432 divisors, whose sum is σ = 83715192288. Its totient is φ = 9495552000.

The previous prime is 28339167991. The next prime is 28339168001. The reversal of 28339168000 is 86193382.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (28339168001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50335719 + ... + 50336281.

Almost surely, 228339168000 is an apocalyptic number.

28339168000 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 28339168000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41857596144).

28339168000 is an abundant number, since it is smaller than the sum of its proper divisors (55376024288).

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

28339168000 is a wasteful number, since it uses less digits than its factorization.

28339168000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 28339168000 in words is "twenty-eight billion, three hundred thirty-nine million, one hundred sixty-eight thousand".