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85000885 = 529586213
BaseRepresentation
bin1010001000100…
…00001010110101
312220221111021221
411010100022311
5133230012020
612233510341
72051331664
oct504201265
9186844257
1085000885
1143a87472
12245723b1
13147c16a8
14b408ddb
1576e06aa
hex51102b5

85000885 has 8 divisors (see below), whose sum is σ = 105518520. Its totient is φ = 65655744.

The previous prime is 85000873. The next prime is 85000933. The reversal of 85000885 is 58800058.

It can be written as a sum of positive squares in 4 ways, for example, as 6022116 + 78978769 = 2454^2 + 8887^2 .

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 85000885 - 29 = 85000373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85000885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292962 + ... + 293251.

It is an arithmetic number, because the mean of its divisors is an integer number (13189815).

Almost surely, 285000885 is an apocalyptic number.

It is an amenable number.

85000885 is a deficient number, since it is larger than the sum of its proper divisors (20517635).

85000885 is a wasteful number, since it uses less digits than its factorization.

85000885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586247.

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

The square root of 85000885 is about 9219.5924530317. The cubic root of 85000885 is about 439.6844931691.

The spelling of 85000885 in words is "eighty-five million, eight hundred eighty-five", and thus it is an aban number.

Divisors: 1 5 29 145 586213 2931065 17000177 85000885