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8790045893 = 61144099113
BaseRepresentation
bin10000010111110110…
…10111010011000101
3211200121000121010022
420023323113103011
5121000222432033
64012121104525
7430553104646
oct101373272305
924617017108
108790045893
11380082a642
121853928145
13aa111c2b5
145d55a16cd
15366a58098
hex20bed74c5

8790045893 has 4 divisors (see below), whose sum is σ = 8934145068. Its totient is φ = 8645946720.

The previous prime is 8790045889. The next prime is 8790045917. The reversal of 8790045893 is 3985400978.

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 1424458564 + 7365587329 = 37742^2 + 85823^2 .

It is a cyclic number.

It is not a de Polignac number, because 8790045893 - 22 = 8790045889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8790042893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72049496 + ... + 72049617.

It is an arithmetic number, because the mean of its divisors is an integer number (2233536267).

Almost surely, 28790045893 is an apocalyptic number.

It is an amenable number.

8790045893 is a deficient number, since it is larger than the sum of its proper divisors (144099175).

8790045893 is a wasteful number, since it uses less digits than its factorization.

8790045893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144099174.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 8790045893 is about 93755.2446159680. The cubic root of 8790045893 is about 2063.7814957988.

The spelling of 8790045893 in words is "eight billion, seven hundred ninety million, forty-five thousand, eight hundred ninety-three".

Divisors: 1 61 144099113 8790045893