Base | Representation |
---|---|
bin | 1011100110110111… |
… | …0101100001000001 |
3 | 22001010221001221202 |
4 | 2321231311201001 |
5 | 22340121110031 |
6 | 1233102230545 |
7 | 140132603612 |
oct | 27155654101 |
9 | 8033831852 |
10 | 3115800641 |
11 | 1359874158 |
12 | 72b585455 |
13 | 3a869ac25 |
14 | 217b4bc09 |
15 | 13381a2cb |
hex | b9b75841 |
3115800641 has 4 divisors (see below), whose sum is σ = 3143374212. Its totient is φ = 3088227072.
The previous prime is 3115800587. The next prime is 3115800689. The reversal of 3115800641 is 1460085113.
3115800641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1460085113 = 2113 ⋅691001.
It can be written as a sum of positive squares in 2 ways, for example, as 114404416 + 3001396225 = 10696^2 + 54785^2 .
It is a cyclic number.
It is not a de Polignac number, because 3115800641 - 230 = 2042058817 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (3115800241) 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, 13786616 + ... + 13786841.
It is an arithmetic number, because the mean of its divisors is an integer number (785843553).
Almost surely, 23115800641 is an apocalyptic number.
It is an amenable number.
3115800641 is a deficient number, since it is larger than the sum of its proper divisors (27573571).
3115800641 is a wasteful number, since it uses less digits than its factorization.
3115800641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27573570.
The product of its (nonzero) digits is 2880, while the sum is 29.
The square root of 3115800641 is about 55819.3572248911. The cubic root of 3115800641 is about 1460.5728409847.
Adding to 3115800641 its reverse (1460085113), we get a palindrome (4575885754).
The spelling of 3115800641 in words is "three billion, one hundred fifteen million, eight hundred thousand, six hundred forty-one".
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