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28853245 = 55770649
BaseRepresentation
bin110111000010…
…0001111111101
32000021220012201
41232010033331
524341300440
62510231501
7500151151
oct156041775
960256181
1028853245
1115317963
1297b5591
135c93035
143b91061
1527ee19a
hex1b843fd

28853245 has 4 divisors (see below), whose sum is σ = 34623900. Its totient is φ = 23082592.

The previous prime is 28853221. The next prime is 28853263. The reversal of 28853245 is 54235882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13147876 + 15705369 = 3626^2 + 3963^2 .

It is a cyclic number.

It is not a de Polignac number, because 28853245 - 25 = 28853213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2885320 + ... + 2885329.

It is an arithmetic number, because the mean of its divisors is an integer number (8655975).

Almost surely, 228853245 is an apocalyptic number.

It is an amenable number.

28853245 is a deficient number, since it is larger than the sum of its proper divisors (5770655).

28853245 is an equidigital number, since it uses as much as digits as its factorization.

28853245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770654.

The product of its digits is 76800, while the sum is 37.

The square root of 28853245 is about 5371.5216652267. The cubic root of 28853245 is about 306.7125554886.

The spelling of 28853245 in words is "twenty-eight million, eight hundred fifty-three thousand, two hundred forty-five".

Divisors: 1 5 5770649 28853245