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85238345 = 5232512953
BaseRepresentation
bin1010001010010…
…10001001001001
312221101120000202
411011022021021
5133310111340
612242541545
72053341203
oct505121111
9187346022
1085238345
1144129915
12246678b5
13148757ba
14b46b773
15773ac15
hex514a249

85238345 has 16 divisors (see below), whose sum is σ = 107194752. Its totient is φ = 64944000.

The previous prime is 85238339. The next prime is 85238347. The reversal of 85238345 is 54383258.

It is not a de Polignac number, because 85238345 - 28 = 85238089 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85238299 and 85238308.

It is not an unprimeable number, because it can be changed into a prime (85238347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27389 + ... + 30341.

It is an arithmetic number, because the mean of its divisors is an integer number (6699672).

Almost surely, 285238345 is an apocalyptic number.

It is an amenable number.

85238345 is a deficient number, since it is larger than the sum of its proper divisors (21956407).

85238345 is a wasteful number, since it uses less digits than its factorization.

85238345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232.

The product of its digits is 115200, while the sum is 38.

The square root of 85238345 is about 9232.4614811003. The cubic root of 85238345 is about 440.0935493237.

The spelling of 85238345 in words is "eighty-five million, two hundred thirty-eight thousand, three hundred forty-five".

Divisors: 1 5 23 115 251 1255 2953 5773 14765 28865 67919 339595 741203 3706015 17047669 85238345