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8904234193 = 9199689047
BaseRepresentation
bin10000100101011101…
…11101010011010001
3211222112212222000121
420102232331103101
5121213440443233
64031320350241
7433440512311
oct102256752321
924875788017
108904234193
11385a231a38
121886015381
13abb98cb3a
14606807441
15371ab192d
hex212bbd4d1

8904234193 has 4 divisors (see below), whose sum is σ = 8913924160. Its totient is φ = 8894544228.

The previous prime is 8904234181. The next prime is 8904234247. The reversal of 8904234193 is 3914324098.

8904234193 is digitally balanced in base 2, 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8904234193 is a prime.

It is a super-2 number, since 2×89042341932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8904234133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4843605 + ... + 4845442.

It is an arithmetic number, because the mean of its divisors is an integer number (2228481040).

Almost surely, 28904234193 is an apocalyptic number.

It is an amenable number.

8904234193 is a deficient number, since it is larger than the sum of its proper divisors (9689967).

8904234193 is an equidigital number, since it uses as much as digits as its factorization.

8904234193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9689966.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 8904234193 is about 94362.2498301095. The cubic root of 8904234193 is about 2072.6796876978.

The spelling of 8904234193 in words is "eight billion, nine hundred four million, two hundred thirty-four thousand, one hundred ninety-three".

Divisors: 1 919 9689047 8904234193