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85527687 = 372581821
BaseRepresentation
bin1010001100100…
…00110010000111
312221221020221010
411012100302013
5133343341222
612253053303
72055654600
oct506206207
9187836833
1085527687
1144307243
1224787233
13149473cb
14b504da7
15779680c
hex5190c87

85527687 has 12 divisors (see below), whose sum is σ = 132655416. Its totient is φ = 48872880.

The previous prime is 85527679. The next prime is 85527703. The reversal of 85527687 is 78672558.

It is not a de Polignac number, because 85527687 - 23 = 85527679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85527887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290764 + ... + 291057.

It is an arithmetic number, because the mean of its divisors is an integer number (11054618).

Almost surely, 285527687 is an apocalyptic number.

85527687 is a deficient number, since it is larger than the sum of its proper divisors (47127729).

85527687 is a wasteful number, since it uses less digits than its factorization.

85527687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581838 (or 581831 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 85527687 is about 9248.1180247659. The cubic root of 85527687 is about 440.5909535386.

The spelling of 85527687 in words is "eighty-five million, five hundred twenty-seven thousand, six hundred eighty-seven".

Divisors: 1 3 7 21 49 147 581821 1745463 4072747 12218241 28509229 85527687