Base | Representation |
---|---|
bin | 1110110001100… |
… | …00011011111001 |
3 | 22122012022111101 |
4 | 13120300123321 |
5 | 223211232421 |
6 | 20144131401 |
7 | 3033251002 |
oct | 730603371 |
9 | 278168441 |
10 | 123930361 |
11 | 63a56795 |
12 | 35606b61 |
13 | 1c8a1b99 |
14 | 126601a9 |
15 | ad30191 |
hex | 76306f9 |
123930361 has 2 divisors, whose sum is σ = 123930362. Its totient is φ = 123930360.
The previous prime is 123930349. The next prime is 123930379. The reversal of 123930361 is 163039321.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 117397225 + 6533136 = 10835^2 + 2556^2 .
It is a cyclic number.
It is not a de Polignac number, because 123930361 - 25 = 123930329 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (123930341) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61965180 + 61965181.
It is an arithmetic number, because the mean of its divisors is an integer number (61965181).
Almost surely, 2123930361 is an apocalyptic number.
It is an amenable number.
123930361 is a deficient number, since it is larger than the sum of its proper divisors (1).
123930361 is an equidigital number, since it uses as much as digits as its factorization.
123930361 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2916, while the sum is 28.
The square root of 123930361 is about 11132.4014031115. The cubic root of 123930361 is about 498.5697272073.
Adding to 123930361 its reverse (163039321), we get a palindrome (286969682).
The spelling of 123930361 in words is "one hundred twenty-three million, nine hundred thirty thousand, three hundred sixty-one".
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