Base | Representation |
---|---|
bin | 10000110111010001… |
… | …100110101101000001 |
3 | 1201201220221122100201 |
4 | 100313101212231001 |
5 | 244040422343131 |
6 | 12152432445201 |
7 | 1210466632024 |
oct | 206721465501 |
9 | 51656848321 |
10 | 18107231041 |
11 | 7752072759 |
12 | 36140a9801 |
13 | 19275064c3 |
14 | c3ab811bb |
15 | 70e9da761 |
hex | 437466b41 |
18107231041 has 4 divisors (see below), whose sum is σ = 18218318512. Its totient is φ = 17996143572.
The previous prime is 18107231027. The next prime is 18107231101. The reversal of 18107231041 is 14013270181.
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: 14013270181 = 8081 ⋅1734101.
It is a cyclic number.
It is not a de Polignac number, because 18107231041 - 213 = 18107222849 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18107231741) 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, 55543491 + ... + 55543816.
It is an arithmetic number, because the mean of its divisors is an integer number (4554579628).
Almost surely, 218107231041 is an apocalyptic number.
It is an amenable number.
18107231041 is a deficient number, since it is larger than the sum of its proper divisors (111087471).
18107231041 is a wasteful number, since it uses less digits than its factorization.
18107231041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111087470.
The product of its (nonzero) digits is 1344, while the sum is 28.
The spelling of 18107231041 in words is "eighteen billion, one hundred seven million, two hundred thirty-one thousand, forty-one".
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