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8905923385 = 51781184677
BaseRepresentation
bin10000100101101010…
…11001101100111001
3211222200001210011021
420102311121230321
5121214404022020
64031420502441
7433461046132
oct102265315471
924880053137
108905923385
113860186067
1218866aaa21
13abc131968
14606b26c89
15371ce71aa
hex212d59b39

8905923385 has 4 divisors (see below), whose sum is σ = 10687108068. Its totient is φ = 7124738704.

The previous prime is 8905923373. The next prime is 8905923391. The reversal of 8905923385 is 5833295098.

It is a happy number.

8905923385 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4786979344 + 4118944041 = 69188^2 + 64179^2 .

It is a cyclic number.

It is not a de Polignac number, because 8905923385 - 223 = 8897534777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 890592334 + ... + 890592343.

It is an arithmetic number, because the mean of its divisors is an integer number (2671777017).

Almost surely, 28905923385 is an apocalyptic number.

It is an amenable number.

8905923385 is a deficient number, since it is larger than the sum of its proper divisors (1781184683).

8905923385 is a wasteful number, since it uses less digits than its factorization.

8905923385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781184682.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 8905923385 is about 94371.1999764759. The cubic root of 8905923385 is about 2072.8107464165.

The spelling of 8905923385 in words is "eight billion, nine hundred five million, nine hundred twenty-three thousand, three hundred eighty-five".

Divisors: 1 5 1781184677 8905923385