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9085189 = 65313913
BaseRepresentation
bin100010101010…
…000100000101
3122002120112111
4202222010011
54311211224
6522421021
7140136301
oct42520405
918076474
109085189
115145923
123061771
131b61369
1412c6d01
15be6d94
hex8aa105

9085189 has 4 divisors (see below), whose sum is σ = 9099756. Its totient is φ = 9070624.

The previous prime is 9085171. The next prime is 9085229. The reversal of 9085189 is 9815809.

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 3932289 + 5152900 = 1983^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 9085189 - 211 = 9083141 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 (9085129) 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, 6304 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (2274939).

Almost surely, 29085189 is an apocalyptic number.

It is an amenable number.

9085189 is a deficient number, since it is larger than the sum of its proper divisors (14567).

9085189 is a wasteful number, since it uses less digits than its factorization.

9085189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14566.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 9085189 is about 3014.1647267527. The cubic root of 9085189 is about 208.6626196731.

The spelling of 9085189 in words is "nine million, eighty-five thousand, one hundred eighty-nine".

Divisors: 1 653 13913 9085189