Base | Representation |
---|---|
bin | 1010001101110… |
… | …01111110000001 |
3 | 12222020211100012 |
4 | 11012321332001 |
5 | 133414241020 |
6 | 12300434305 |
7 | 2060256455 |
oct | 506717601 |
9 | 188224305 |
10 | 85696385 |
11 | 44411a65 |
12 | 24848995 |
13 | 149a6128 |
14 | b54a665 |
15 | 77cb7c5 |
hex | 51b9f81 |
85696385 has 8 divisors (see below), whose sum is σ = 102938280. Its totient is φ = 68488704.
The previous prime is 85696381. The next prime is 85696411. The reversal of 85696385 is 58369658.
It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 85396081 = 548^2 + 9241^2 .
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 85696385 - 22 = 85696381 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (85696381) 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, 2672 + ... + 13361.
It is an arithmetic number, because the mean of its divisors is an integer number (12867285).
Almost surely, 285696385 is an apocalyptic number.
85696385 is the 5345-th octagonal number.
It is an amenable number.
85696385 is a deficient number, since it is larger than the sum of its proper divisors (17241895).
85696385 is a wasteful number, since it uses less digits than its factorization.
85696385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17107.
The product of its digits is 1555200, while the sum is 50.
The square root of 85696385 is about 9257.2341981825. The cubic root of 85696385 is about 440.8804426324.
The spelling of 85696385 in words is "eighty-five million, six hundred ninety-six thousand, three hundred eighty-five".
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