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85065807 = 3171667957
BaseRepresentation
bin1010001001000…
…00000001001111
312221001210100110
411010200001033
5133234101212
612235131103
72052022161
oct504400117
9187053313
1085065807
1144021222
12245a3a93
13148150c8
14b424931
157704a3c
hex512004f

85065807 has 8 divisors (see below), whose sum is σ = 120092976. Its totient is φ = 53374592.

The previous prime is 85065797. The next prime is 85065809. The reversal of 85065807 is 70856058.

It is a happy number.

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 85065807 - 24 = 85065791 is a prime.

It is a super-2 number, since 2×850658072 = 14472383041122498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85065809) 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, 833928 + ... + 834029.

It is an arithmetic number, because the mean of its divisors is an integer number (15011622).

Almost surely, 285065807 is an apocalyptic number.

85065807 is a deficient number, since it is larger than the sum of its proper divisors (35027169).

85065807 is a wasteful number, since it uses less digits than its factorization.

85065807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667977.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 85065807 is about 9223.1126524617. The cubic root of 85065807 is about 439.7964054640.

The spelling of 85065807 in words is "eighty-five million, sixty-five thousand, eight hundred seven".

Divisors: 1 3 17 51 1667957 5003871 28355269 85065807