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808393 = 19157271
BaseRepresentation
bin11000101010111001001
31112001220111
43011113021
5201332033
625154321
76604555
oct3052711
91461814
10808393
115023a3
1232b9a1
13223c51
14170865
1510e7cd
hexc55c9

808393 has 8 divisors (see below), whose sum is σ = 859520. Its totient is φ = 758160.

The previous prime is 808391. The next prime is 808399. The reversal of 808393 is 393808.

808393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 808393 - 21 = 808391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2848 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (107440).

2808393 is an apocalyptic number.

It is an amenable number.

808393 is a deficient number, since it is larger than the sum of its proper divisors (51127).

808393 is a wasteful number, since it uses less digits than its factorization.

808393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 808393 is about 899.1067789757. The cubic root of 808393 is about 93.1552884076.

The spelling of 808393 in words is "eight hundred eight thousand, three hundred ninety-three".

Divisors: 1 19 157 271 2983 5149 42547 808393