Base | Representation |
---|---|
bin | 1110101010100… |
… | …10111111010001 |
3 | 22120111020021000 |
4 | 13111102333101 |
5 | 222443221223 |
6 | 20112452213 |
7 | 3022452360 |
oct | 725227721 |
9 | 276436230 |
10 | 123023313 |
11 | 63497266 |
12 | 3524a069 |
13 | 1c64507a |
14 | 124a57d7 |
15 | ac01543 |
hex | 7552fd1 |
123023313 has 16 divisors (see below), whose sum is σ = 208293760. Its totient is φ = 70298928.
The previous prime is 123023293. The next prime is 123023317. The reversal of 123023313 is 313320321.
It is not a de Polignac number, because 123023313 - 25 = 123023281 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123023317) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325270 + ... + 325647.
It is an arithmetic number, because the mean of its divisors is an integer number (13018360).
Almost surely, 2123023313 is an apocalyptic number.
It is an amenable number.
123023313 is a deficient number, since it is larger than the sum of its proper divisors (85270447).
123023313 is an equidigital number, since it uses as much as digits as its factorization.
123023313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 650933 (or 650927 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 123023313 is about 11091.5874878216. The cubic root of 123023313 is about 497.3504013893.
Adding to 123023313 its reverse (313320321), we get a palindrome (436343634).
The spelling of 123023313 in words is "one hundred twenty-three million, twenty-three thousand, three hundred thirteen".
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