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85842845 = 511312899
BaseRepresentation
bin1010001110111…
…01101110011101
312222112021020122
411013131232131
5133433432340
612303524325
72061436454
oct507355635
9188467218
1085842845
1144502000
12248b96a5
1314a279aa
14b587b9b
157809db5
hex51ddb9d

85842845 has 16 divisors (see below), whose sum is σ = 113313600. Its totient is φ = 62426320.

The previous prime is 85842839. The next prime is 85842853. The reversal of 85842845 is 54824858.

It is not a de Polignac number, because 85842845 - 26 = 85842781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85842796 and 85842805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206 + ... + 13104.

It is an arithmetic number, because the mean of its divisors is an integer number (7082100).

Almost surely, 285842845 is an apocalyptic number.

It is an amenable number.

85842845 is a deficient number, since it is larger than the sum of its proper divisors (27470755).

85842845 is a wasteful number, since it uses less digits than its factorization.

85842845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12937 (or 12915 counting only the distinct ones).

The product of its digits is 409600, while the sum is 44.

The square root of 85842845 is about 9265.1413912579. The cubic root of 85842845 is about 441.1314629415.

The spelling of 85842845 in words is "eighty-five million, eight hundred forty-two thousand, eight hundred forty-five".

Divisors: 1 5 11 55 121 605 1331 6655 12899 64495 141889 709445 1560779 7803895 17168569 85842845