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28094976 = 293271367
BaseRepresentation
bin110101100101…
…1001000000000
31221212101001200
41223023020000
524143014401
62442101200
7460542360
oct153131000
957771050
1028094976
111494a198
1294aa800
135a88b60
143a349a0
1526ee686
hex1acb200

28094976 has 240 divisors, whose sum is σ = 101285184. Its totient is φ = 7299072.

The previous prime is 28094971. The next prime is 28094987. The reversal of 28094976 is 67949082.

It is a happy number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 28094976 = 83 + 3043 = 823 + 3023.

It is not an unprimeable number, because it can be changed into a prime (28094971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419295 + ... + 419361.

Almost surely, 228094976 is an apocalyptic number.

28094976 is a gapful number since it is divisible by the number (26) 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 28094976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50642592).

28094976 is an abundant number, since it is smaller than the sum of its proper divisors (73190208).

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

28094976 is a wasteful number, since it uses less digits than its factorization.

28094976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 28094976 is about 5300.4694131746. The cubic root of 28094976 is about 304.0018467109.

The spelling of 28094976 in words is "twenty-eight million, ninety-four thousand, nine hundred seventy-six".