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28050895 = 513940361
BaseRepresentation
bin110101100000…
…0010111001111
31221210010121001
41223000113033
524140112040
62441121131
7460300015
oct153002717
957703531
1028050895
111491a064
1294891a7
135a71a82
143a228b5
1526e159a
hex1ac05cf

28050895 has 8 divisors (see below), whose sum is σ = 33904080. Its totient is φ = 22278720.

The previous prime is 28050881. The next prime is 28050923. The reversal of 28050895 is 59805082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28050895 - 25 = 28050863 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19486 + ... + 20875.

It is an arithmetic number, because the mean of its divisors is an integer number (4238010).

Almost surely, 228050895 is an apocalyptic number.

28050895 is a deficient number, since it is larger than the sum of its proper divisors (5853185).

28050895 is a wasteful number, since it uses less digits than its factorization.

28050895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40505.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 28050895 is about 5296.3095642154. The cubic root of 28050895 is about 303.8427705818.

The spelling of 28050895 in words is "twenty-eight million, fifty thousand, eight hundred ninety-five".

Divisors: 1 5 139 695 40361 201805 5610179 28050895