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9309085 = 51861817
BaseRepresentation
bin100011100000…
…101110011101
3122111221122221
4203200232131
54340342320
6531305341
7142061122
oct43405635
918457587
109309085
115289065
12314b251
131c0c246
141344749
15c3d3aa
hex8e0b9d

9309085 has 4 divisors (see below), whose sum is σ = 11170908. Its totient is φ = 7447264.

The previous prime is 9309077. The next prime is 9309103. The reversal of 9309085 is 5809039.

9309085 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 an emirpimes, since its reverse is a distinct semiprime: 5809039 = 9759887.

It can be written as a sum of positive squares in 2 ways, for example, as 3286969 + 6022116 = 1813^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 9309085 - 23 = 9309077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9309085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930904 + ... + 930913.

It is an arithmetic number, because the mean of its divisors is an integer number (2792727).

Almost surely, 29309085 is an apocalyptic number.

It is an amenable number.

9309085 is a deficient number, since it is larger than the sum of its proper divisors (1861823).

9309085 is a wasteful number, since it uses less digits than its factorization.

9309085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861822.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 9309085 is about 3051.0793172253. The cubic root of 9309085 is about 210.3628270360.

The spelling of 9309085 in words is "nine million, three hundred nine thousand, eighty-five".

Divisors: 1 5 1861817 9309085