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8528393 = 11717283
BaseRepresentation
bin100000100010…
…001000001001
3121001021202102
4200202020021
54140402033
6502443145
7132330056
oct40421011
917037672
108528393
1148a5565
122a334b5
1319c7ab3
1411c002d
15b36de8
hex822209

8528393 has 4 divisors (see below), whose sum is σ = 8536848. Its totient is φ = 8519940.

The previous prime is 8528383. The next prime is 8528411. The reversal of 8528393 is 3938258.

8528393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8528393 - 210 = 8527369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8528353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2471 + ... + 4812.

It is an arithmetic number, because the mean of its divisors is an integer number (2134212).

Almost surely, 28528393 is an apocalyptic number.

It is an amenable number.

8528393 is a deficient number, since it is larger than the sum of its proper divisors (8455).

8528393 is a wasteful number, since it uses less digits than its factorization.

8528393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454.

The product of its digits is 51840, while the sum is 38.

The square root of 8528393 is about 2920.3412471833. The cubic root of 8528393 is about 204.3097386918.

The spelling of 8528393 in words is "eight million, five hundred twenty-eight thousand, three hundred ninety-three".

Divisors: 1 1171 7283 8528393