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85743265 = 519787049
BaseRepresentation
bin1010001110001…
…01011010100001
312222100012122111
411013011122201
5133422241030
612301435321
72060543236
oct507053241
9188305574
1085743265
1144444203
122486bb41
13149c157a
14b55d78d
1577da62a
hex51c56a1

85743265 has 8 divisors (see below), whose sum is σ = 103415400. Its totient is φ = 68245632.

The previous prime is 85743263. The next prime is 85743289. The reversal of 85743265 is 56234758.

It can be written as a sum of positive squares in 4 ways, for example, as 36869184 + 48874081 = 6072^2 + 6991^2 .

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 85743265 - 21 = 85743263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85743263) 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, 42540 + ... + 44509.

It is an arithmetic number, because the mean of its divisors is an integer number (12926925).

Almost surely, 285743265 is an apocalyptic number.

It is an amenable number.

85743265 is a deficient number, since it is larger than the sum of its proper divisors (17672135).

85743265 is a wasteful number, since it uses less digits than its factorization.

85743265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87251.

The product of its digits is 201600, while the sum is 40.

The square root of 85743265 is about 9259.7659257672. The cubic root of 85743265 is about 440.9608221701.

The spelling of 85743265 in words is "eighty-five million, seven hundred forty-three thousand, two hundred sixty-five".

Divisors: 1 5 197 985 87049 435245 17148653 85743265