Base | Representation |
---|---|
bin | 110001011110010… |
… | …010010101110111 |
3 | 2010211211112112202 |
4 | 301132102111313 |
5 | 3144441214111 |
6 | 214210135115 |
7 | 26366036135 |
oct | 6136222567 |
9 | 2124745482 |
10 | 830023031 |
11 | 396587652 |
12 | 1b1b8149b |
13 | 102c654b6 |
14 | 7c342755 |
15 | 4cd07b3b |
hex | 31792577 |
830023031 has 2 divisors, whose sum is σ = 830023032. Its totient is φ = 830023030.
The previous prime is 830023027. The next prime is 830023043. The reversal of 830023031 is 130320038.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 830023031 - 22 = 830023027 is a prime.
It is a super-2 number, since 2×8300230312 = 1377876463980853922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 830022994 and 830023012.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (830023091) 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 as a sum of consecutive naturals, namely, 415011515 + 415011516.
It is an arithmetic number, because the mean of its divisors is an integer number (415011516).
Almost surely, 2830023031 is an apocalyptic number.
830023031 is a deficient number, since it is larger than the sum of its proper divisors (1).
830023031 is an equidigital number, since it uses as much as digits as its factorization.
830023031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 830023031 is about 28810.1202878433. The cubic root of 830023031 is about 939.7883298104.
Adding to 830023031 its reverse (130320038), we get a palindrome (960343069).
The spelling of 830023031 in words is "eight hundred thirty million, twenty-three thousand, thirty-one".
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