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8085811 = 192318503
BaseRepresentation
bin11110110110000100110011
3120012210122111
4132312010303
54032221221
6445150151
7125504536
oct36660463
916183574
108085811
114622a98
12285b357
1318a1506
141106a1d
15a9abe1
hex7b6133

8085811 has 8 divisors (see below), whose sum is σ = 8881920. Its totient is φ = 7326792.

The previous prime is 8085797. The next prime is 8085817. The reversal of 8085811 is 1185808.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8085811 - 27 = 8085683 is a prime.

It is a Duffinian number.

8085811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8085817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8815 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (1110240).

Almost surely, 28085811 is an apocalyptic number.

8085811 is a deficient number, since it is larger than the sum of its proper divisors (796109).

8085811 is a wasteful number, since it uses less digits than its factorization.

8085811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18545.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 8085811 is about 2843.5560483310. The cubic root of 8085811 is about 200.7125500142.

The spelling of 8085811 in words is "eight million, eighty-five thousand, eight hundred eleven".

Divisors: 1 19 23 437 18503 351557 425569 8085811