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85320653 = 1119938977
BaseRepresentation
bin1010001010111…
…10001111001101
312221112201221012
411011132033031
5133320230103
612244415005
72054133155
oct505361715
9187481835
1085320653
1144185740
12246a7465
13148a40c2
14b48d765
1577552d8
hex515e3cd

85320653 has 8 divisors (see below), whose sum is σ = 93547200. Its totient is φ = 77172480.

The previous prime is 85320647. The next prime is 85320661. The reversal of 85320653 is 35602358.

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

It is not a de Polignac number, because 85320653 - 26 = 85320589 is a prime.

It is a super-2 number, since 2×853206532 = 14559227656692818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85320253) 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, 17300 + ... + 21677.

It is an arithmetic number, because the mean of its divisors is an integer number (11693400).

Almost surely, 285320653 is an apocalyptic number.

It is an amenable number.

85320653 is a deficient number, since it is larger than the sum of its proper divisors (8226547).

85320653 is a wasteful number, since it uses less digits than its factorization.

85320653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39187.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 85320653 is about 9236.9179383602. The cubic root of 85320653 is about 440.2351583879.

The spelling of 85320653 in words is "eighty-five million, three hundred twenty thousand, six hundred fifty-three".

Divisors: 1 11 199 2189 38977 428747 7756423 85320653