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28394496000 = 21333531379
BaseRepresentation
bin11010011100011100…
…011010000000000000
32201021212020211221000
4122130130122000000
5431122442333000
621013320332000
72023433143113
oct323434320000
981255224830
1028394496000
1111050a53122
125605314000
1328a6883030
14153512057a
15b12bde000
hex69c71a000

28394496000 has 896 divisors, whose sum is σ = 114497510400. Its totient is φ = 6900940800.

The previous prime is 28394495993. The next prime is 28394496023. The reversal of 28394496000 is 69449382.

28394496000 is a `hidden beast` number, since 2 + 8 + 39 + 4 + 4 + 9 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 359423961 + ... + 359424039.

It is an arithmetic number, because the mean of its divisors is an integer number (127787400).

Almost surely, 228394496000 is an apocalyptic number.

28394496000 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 28394496000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57248755200).

28394496000 is an abundant number, since it is smaller than the sum of its proper divisors (86103014400).

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

28394496000 is an equidigital number, since it uses as much as digits as its factorization.

28394496000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 28394496000 in words is "twenty-eight billion, three hundred ninety-four million, four hundred ninety-six thousand".