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808541393 = 1173503763
BaseRepresentation
bin110000001100010…
…101110011010001
32002100102011021112
4300030111303101
53123441311033
6212121503105
726015326352
oct6014256321
92070364245
10808541393
11385445130
121a6941a95
13cb68387a
147954dd29
154aeb2c48
hex30315cd1

808541393 has 4 divisors (see below), whose sum is σ = 882045168. Its totient is φ = 735037620.

The previous prime is 808541359. The next prime is 808541413. The reversal of 808541393 is 393145808.

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.

It is a cyclic number.

It is not a de Polignac number, because 808541393 - 28 = 808541137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 808541393.

It is not an unprimeable number, because it can be changed into a prime (808541693) 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 3 ways as a sum of consecutive naturals, for example, 36751871 + ... + 36751892.

It is an arithmetic number, because the mean of its divisors is an integer number (220511292).

Almost surely, 2808541393 is an apocalyptic number.

It is an amenable number.

808541393 is a deficient number, since it is larger than the sum of its proper divisors (73503775).

808541393 is a wasteful number, since it uses less digits than its factorization.

808541393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73503774.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 808541393 is about 28434.8622820650. The cubic root of 808541393 is about 931.6098808875.

The spelling of 808541393 in words is "eight hundred eight million, five hundred forty-one thousand, three hundred ninety-three".

Divisors: 1 11 73503763 808541393