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7168893389 = 71024127627
BaseRepresentation
bin1101010110100110…
…01010000111001101
3200111121112111221222
412223103022013031
5104140214042024
63143210133125
7342436405550
oct65323120715
920447474858
107168893389
113049720789
121480a211a5
138a32bb668
144c0162697
152be57b85e
hex1ab4ca1cd

7168893389 has 4 divisors (see below), whose sum is σ = 8193021024. Its totient is φ = 6144765756.

The previous prime is 7168893379. The next prime is 7168893427. The reversal of 7168893389 is 9833988617.

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 7168893389 - 28 = 7168893133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7168893379) 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, 512063807 + ... + 512063820.

It is an arithmetic number, because the mean of its divisors is an integer number (2048255256).

Almost surely, 27168893389 is an apocalyptic number.

It is an amenable number.

7168893389 is a deficient number, since it is larger than the sum of its proper divisors (1024127635).

7168893389 is a wasteful number, since it uses less digits than its factorization.

7168893389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024127634.

The product of its digits is 15676416, while the sum is 62.

The square root of 7168893389 is about 84669.3178725328. The cubic root of 7168893389 is about 1928.1939119778.

The spelling of 7168893389 in words is "seven billion, one hundred sixty-eight million, eight hundred ninety-three thousand, three hundred eighty-nine".

Divisors: 1 7 1024127627 7168893389