Base | Representation |
---|---|
bin | 11100001010000010… |
… | …100101111111011011 |
3 | 2220001000010212100212 |
4 | 130022002211333123 |
5 | 443404201120011 |
6 | 21520002521335 |
7 | 2120131104446 |
oct | 341202457733 |
9 | 86030125325 |
10 | 30233223131 |
11 | 11904959021 |
12 | 5a3906624b |
13 | 2b0a7b2457 |
14 | 166b3d865d |
15 | bbe34708b |
hex | 70a0a5fdb |
30233223131 has 2 divisors, whose sum is σ = 30233223132. Its totient is φ = 30233223130.
The previous prime is 30233223121. The next prime is 30233223191. The reversal of 30233223131 is 13132233203.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30233223131 is a prime.
It is a super-2 number, since 2×302332231312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30233223097 and 30233223106.
It is not a weakly prime, because it can be changed into another prime (30233223101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116611565 + 15116611566.
It is an arithmetic number, because the mean of its divisors is an integer number (15116611566).
Almost surely, 230233223131 is an apocalyptic number.
30233223131 is a deficient number, since it is larger than the sum of its proper divisors (1).
30233223131 is an equidigital number, since it uses as much as digits as its factorization.
30233223131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1944, while the sum is 23.
Adding to 30233223131 its reverse (13132233203), we get a palindrome (43365456334).
The spelling of 30233223131 in words is "thirty billion, two hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-one".
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