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8085805 = 571321367
BaseRepresentation
bin11110110110000100101101
3120012210122021
4132312010231
54032221210
6445150141
7125504530
oct36660455
916183567
108085805
114622a92
12285b351
1318a1500
141106a17
15a9abda
hex7b612d

8085805 has 24 divisors (see below), whose sum is σ = 12016512. Its totient is φ = 5114304.

The previous prime is 8085797. The next prime is 8085817. The reversal of 8085805 is 5085808.

It is not a de Polignac number, because 8085805 - 23 = 8085797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5232 + ... + 6598.

It is an arithmetic number, because the mean of its divisors is an integer number (500688).

Almost surely, 28085805 is an apocalyptic number.

It is an amenable number.

8085805 is a deficient number, since it is larger than the sum of its proper divisors (3930707).

8085805 is a wasteful number, since it uses less digits than its factorization.

8085805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 8085805 is about 2843.5549933138. The cubic root of 8085805 is about 200.7125003686.

It can be divided in two parts, 80 and 85805, that multiplied together give a square (6864400 = 26202).

The spelling of 8085805 in words is "eight million, eighty-five thousand, eight hundred five".

Divisors: 1 5 7 13 35 65 91 169 455 845 1183 1367 5915 6835 9569 17771 47845 88855 124397 231023 621985 1155115 1617161 8085805