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28112853 = 323939209
BaseRepresentation
bin110101100111…
…1011111010101
31221220021120210
41223033133111
524144102403
62442320033
7460645446
oct153173725
957807523
1028112853
111496166a
1294b9019
135a94032
143a3b2cd
152704b03
hex1acf7d5

28112853 has 8 divisors (see below), whose sum is σ = 37641600. Its totient is φ = 18663008.

The previous prime is 28112827. The next prime is 28112869. The reversal of 28112853 is 35821182.

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 28112853 - 26 = 28112789 is a prime.

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 28112853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18888 + ... + 20321.

It is an arithmetic number, because the mean of its divisors is an integer number (4705200).

Almost surely, 228112853 is an apocalyptic number.

It is an amenable number.

28112853 is a deficient number, since it is larger than the sum of its proper divisors (9528747).

28112853 is a wasteful number, since it uses less digits than its factorization.

28112853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39451.

The product of its digits is 3840, while the sum is 30.

The square root of 28112853 is about 5302.1555050753. The cubic root of 28112853 is about 304.0663124327.

The spelling of 28112853 in words is "twenty-eight million, one hundred twelve thousand, eight hundred fifty-three".

Divisors: 1 3 239 717 39209 117627 9370951 28112853