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85186327 = 463718371
BaseRepresentation
bin1010001001111…
…01011100010111
312221021220200011
411010331130113
5133301430302
612241501051
72053033432
oct504753427
9187256604
1085186327
11440a3826
1224641787
1314857c15
14b456819
15772a5d7
hex513d717

85186327 has 4 divisors (see below), whose sum is σ = 85209336. Its totient is φ = 85163320.

The previous prime is 85186307. The next prime is 85186331. The reversal of 85186327 is 72368158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72368158 = 236184079.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85186327 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85186327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85186307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4549 + ... + 13822.

It is an arithmetic number, because the mean of its divisors is an integer number (21302334).

Almost surely, 285186327 is an apocalyptic number.

85186327 is a deficient number, since it is larger than the sum of its proper divisors (23009).

85186327 is a wasteful number, since it uses less digits than its factorization.

85186327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23008.

The product of its digits is 80640, while the sum is 40.

The square root of 85186327 is about 9229.6439259594. The cubic root of 85186327 is about 440.0040065062.

It can be divided in two parts, 851 and 86327, that added together give a palindrome (87178).

The spelling of 85186327 in words is "eighty-five million, one hundred eighty-six thousand, three hundred twenty-seven".

Divisors: 1 4637 18371 85186327