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85653193 = 711206383
BaseRepresentation
bin1010001101011…
…11011011001001
312222011122002111
411012233123021
5133411400233
612255502321
72060016523
oct506573311
9188148074
1085653193
114439256a
12248279a1
131498c582
14b538a13
1577bdacd
hex51af6c9

85653193 has 4 divisors (see below), whose sum is σ = 86859648. Its totient is φ = 84446740.

The previous prime is 85653167. The next prime is 85653203. The reversal of 85653193 is 39135658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39135658 = 219567829.

It is a cyclic number.

It is not a de Polignac number, because 85653193 - 221 = 83556041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85653493) 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, 603121 + ... + 603262.

It is an arithmetic number, because the mean of its divisors is an integer number (21714912).

Almost surely, 285653193 is an apocalyptic number.

It is an amenable number.

85653193 is a deficient number, since it is larger than the sum of its proper divisors (1206455).

85653193 is a wasteful number, since it uses less digits than its factorization.

85653193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206454.

The product of its digits is 97200, while the sum is 40.

The square root of 85653193 is about 9254.9010259430. The cubic root of 85653193 is about 440.8063605180.

The spelling of 85653193 in words is "eighty-five million, six hundred fifty-three thousand, one hundred ninety-three".

Divisors: 1 71 1206383 85653193