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85318645 = 519898091
BaseRepresentation
bin1010001010111…
…01101111110101
312221112122011211
411011131233311
5133320144040
612244401421
72054124256
oct505355765
9187478154
1085318645
1144184185
12246a6271
13148a3209
14b48cb2d
1577548ea
hex515dbf5

85318645 has 8 divisors (see below), whose sum is σ = 107771040. Its totient is φ = 64662480.

The previous prime is 85318643. The next prime is 85318669. The reversal of 85318645 is 54681358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85318645 - 21 = 85318643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85318598 and 85318607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85318643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 448951 + ... + 449140.

It is an arithmetic number, because the mean of its divisors is an integer number (13471380).

Almost surely, 285318645 is an apocalyptic number.

It is an amenable number.

85318645 is a deficient number, since it is larger than the sum of its proper divisors (22452395).

85318645 is a wasteful number, since it uses less digits than its factorization.

85318645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898115.

The product of its digits is 115200, while the sum is 40.

The square root of 85318645 is about 9236.8092434563. The cubic root of 85318645 is about 440.2317047531.

The spelling of 85318645 in words is "eighty-five million, three hundred eighteen thousand, six hundred forty-five".

Divisors: 1 5 19 95 898091 4490455 17063729 85318645