Base | Representation |
---|---|
bin | 1110101010101… |
… | …11110110101001 |
3 | 22120112020121002 |
4 | 13111113312221 |
5 | 222444340431 |
6 | 20113124345 |
7 | 3022564436 |
oct | 725276651 |
9 | 276466532 |
10 | 123043241 |
11 | 63500232 |
12 | 352596b5 |
13 | 1c651169 |
14 | 124acb8d |
15 | ac073cb |
hex | 7557da9 |
123043241 has 8 divisors (see below), whose sum is σ = 126699144. Its totient is φ = 119404800.
The previous prime is 123043223. The next prime is 123043363. The reversal of 123043241 is 142340321.
It can be written as a sum of positive squares in 4 ways, for example, as 64963600 + 58079641 = 8060^2 + 7621^2 .
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 123043241 - 26 = 123043177 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 (123040241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10691 + ... + 18983.
It is an arithmetic number, because the mean of its divisors is an integer number (15837393).
Almost surely, 2123043241 is an apocalyptic number.
It is an amenable number.
123043241 is a deficient number, since it is larger than the sum of its proper divisors (3655903).
123043241 is an equidigital number, since it uses as much as digits as its factorization.
123043241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8731.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 123043241 is about 11092.4857899391. The cubic root of 123043241 is about 497.3772544668.
Adding to 123043241 its reverse (142340321), we get a palindrome (265383562).
The spelling of 123043241 in words is "one hundred twenty-three million, forty-three thousand, two hundred forty-one".
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