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85752387 = 3271361149
BaseRepresentation
bin1010001110001…
…11101001000011
312222100200011100
411013013221003
5133423034022
612301545443
72060611650
oct507075103
9188320140
1085752387
1144450046
1224875283
13149c5776
14b562c27
1577dd1ac
hex51c7a43

85752387 has 12 divisors (see below), whose sum is σ = 141559600. Its totient is φ = 49001328.

The previous prime is 85752383. The next prime is 85752413. The reversal of 85752387 is 78325758.

It is not a de Polignac number, because 85752387 - 22 = 85752383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85752383) 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 11 ways as a sum of consecutive naturals, for example, 680512 + ... + 680637.

Almost surely, 285752387 is an apocalyptic number.

85752387 is a deficient number, since it is larger than the sum of its proper divisors (55807213).

85752387 is a wasteful number, since it uses less digits than its factorization.

85752387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361162 (or 1361159 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 85752387 is about 9260.2584737144. The cubic root of 85752387 is about 440.9764591688.

The spelling of 85752387 in words is "eighty-five million, seven hundred fifty-two thousand, three hundred eighty-seven".

Divisors: 1 3 7 9 21 63 1361149 4083447 9528043 12250341 28584129 85752387