Base | Representation |
---|---|
bin | 1010001010000… |
… | …00110010101001 |
3 | 12221022121111002 |
4 | 11011000302221 |
5 | 133302400131 |
6 | 12242044345 |
7 | 2053121423 |
oct | 505006251 |
9 | 187277432 |
10 | 85200041 |
11 | 44103063 |
12 | 246496b5 |
13 | 14861234 |
14 | b45b813 |
15 | 772e6cb |
hex | 5140ca9 |
85200041 has 4 divisors (see below), whose sum is σ = 85231812. Its totient is φ = 85168272.
The previous prime is 85200029. The next prime is 85200061. The reversal of 85200041 is 14000258.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14000258 = 2 ⋅7000129.
It can be written as a sum of positive squares in 2 ways, for example, as 14707225 + 70492816 = 3835^2 + 8396^2 .
It is a cyclic number.
It is not a de Polignac number, because 85200041 - 26 = 85199977 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 85199986 and 85200022.
It is not an unprimeable number, because it can be changed into a prime (85200061) 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, 11450 + ... + 17363.
It is an arithmetic number, because the mean of its divisors is an integer number (21307953).
Almost surely, 285200041 is an apocalyptic number.
It is an amenable number.
85200041 is a deficient number, since it is larger than the sum of its proper divisors (31771).
85200041 is a wasteful number, since it uses less digits than its factorization.
85200041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31770.
The product of its (nonzero) digits is 320, while the sum is 20.
The square root of 85200041 is about 9230.3868282971. The cubic root of 85200041 is about 440.0276170682.
Adding to 85200041 its reverse (14000258), we get a palindrome (99200299).
The spelling of 85200041 in words is "eighty-five million, two hundred thousand, forty-one".
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