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85568215 = 531552053
BaseRepresentation
bin1010001100110…
…10101011010111
312222000022112011
411012122223113
5133401140330
612254005051
72056214005
oct506325327
9188008464
1085568215
1144334737
12247a6787
131495c9a5
14b515a75
1577a382a
hex519aad7

85568215 has 8 divisors (see below), whose sum is σ = 105994368. Its totient is φ = 66246240.

The previous prime is 85568213. The next prime is 85568239. The reversal of 85568215 is 51286558.

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

It is not a de Polignac number, because 85568215 - 21 = 85568213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85568213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275872 + ... + 276181.

It is an arithmetic number, because the mean of its divisors is an integer number (13249296).

Almost surely, 285568215 is an apocalyptic number.

85568215 is a deficient number, since it is larger than the sum of its proper divisors (20426153).

85568215 is a wasteful number, since it uses less digits than its factorization.

85568215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552089.

The product of its digits is 96000, while the sum is 40.

The square root of 85568215 is about 9250.3089137607. The cubic root of 85568215 is about 440.6605351017.

The spelling of 85568215 in words is "eighty-five million, five hundred sixty-eight thousand, two hundred fifteen".

Divisors: 1 5 31 155 552053 2760265 17113643 85568215