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28545295 = 517499673
BaseRepresentation
bin110110011100…
…1000100001111
31222201020210011
41230321010033
524301422140
62455454051
7464426302
oct154710417
958636704
1028545295
1115127559
129687327
135bb5b0c
143b10b39
15278ccea
hex1b3910f

28545295 has 16 divisors (see below), whose sum is σ = 36396000. Its totient is φ = 21417984.

The previous prime is 28545289. The next prime is 28545299. The reversal of 28545295 is 59254582.

It is a cyclic number.

It is not a de Polignac number, because 28545295 - 221 = 26448143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28545299) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42079 + ... + 42751.

It is an arithmetic number, because the mean of its divisors is an integer number (2274750).

Almost surely, 228545295 is an apocalyptic number.

28545295 is a deficient number, since it is larger than the sum of its proper divisors (7850705).

28545295 is a wasteful number, since it uses less digits than its factorization.

28545295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194.

The product of its digits is 144000, while the sum is 40.

The square root of 28545295 is about 5342.7797072311. The cubic root of 28545295 is about 305.6174716524.

The spelling of 28545295 in words is "twenty-eight million, five hundred forty-five thousand, two hundred ninety-five".

Divisors: 1 5 17 85 499 673 2495 3365 8483 11441 42415 57205 335827 1679135 5709059 28545295