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28110245 = 510354583
BaseRepresentation
bin110101100111…
…0110110100101
31221220011000012
41223032312211
524144011440
62442300005
7460635032
oct153166645
957804005
1028110245
111495a709
1294b7605
135a92aa7
143a3a389
152703e65
hex1aceda5

28110245 has 8 divisors (see below), whose sum is σ = 34060416. Its totient is φ = 22269456.

The previous prime is 28110239. The next prime is 28110259. The reversal of 28110245 is 54201182.

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

It is a cyclic number.

It is not a de Polignac number, because 28110245 - 28 = 28109989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28110245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26777 + ... + 27806.

It is an arithmetic number, because the mean of its divisors is an integer number (4257552).

Almost surely, 228110245 is an apocalyptic number.

It is an amenable number.

28110245 is a deficient number, since it is larger than the sum of its proper divisors (5950171).

28110245 is a wasteful number, since it uses less digits than its factorization.

28110245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54691.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 28110245 is about 5301.9095616580. The cubic root of 28110245 is about 304.0569095039.

The spelling of 28110245 in words is "twenty-eight million, one hundred ten thousand, two hundred forty-five".

Divisors: 1 5 103 515 54583 272915 5622049 28110245