Base | Representation |
---|---|
bin | 1010001110100… |
… | …10000111011001 |
3 | 12222102212000022 |
4 | 11013102013121 |
5 | 133430422124 |
6 | 12302520225 |
7 | 2061151016 |
oct | 507220731 |
9 | 188385008 |
10 | 85795289 |
11 | 4447a2a8 |
12 | 24896075 |
13 | 14a0c158 |
14 | b57470d |
15 | 77eac5e |
hex | 51d21d9 |
85795289 has 4 divisors (see below), whose sum is σ = 85981056. Its totient is φ = 85609524.
The previous prime is 85795271. The next prime is 85795361. The reversal of 85795289 is 98259758.
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: 98259758 = 2 ⋅49129879.
It is a cyclic number.
It is not a de Polignac number, because 85795289 - 28 = 85795033 is a prime.
It is a super-2 number, since 2×857952892 = 14721663229187042, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 85795289.
It is not an unprimeable number, because it can be changed into a prime (85795249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92189 + ... + 93114.
It is an arithmetic number, because the mean of its divisors is an integer number (21495264).
Almost surely, 285795289 is an apocalyptic number.
It is an amenable number.
85795289 is a deficient number, since it is larger than the sum of its proper divisors (185767).
85795289 is a wasteful number, since it uses less digits than its factorization.
85795289 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 185766.
The product of its digits is 1814400, while the sum is 53.
The square root of 85795289 is about 9262.5746420744. The cubic root of 85795289 is about 441.0499872208.
The spelling of 85795289 in words is "eighty-five million, seven hundred ninety-five thousand, two hundred eighty-nine".
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