Base | Representation |
---|---|
bin | 11100000011111001… |
… | …101011100001111111 |
3 | 2212202211022221001202 |
4 | 130003321223201333 |
5 | 443201314120411 |
6 | 21501443130115 |
7 | 2114440446263 |
oct | 340371534177 |
9 | 85684287052 |
10 | 30130223231 |
11 | 118617a8739 |
12 | 5a0a67393b |
13 | 2ac235b374 |
14 | 165b8660a3 |
15 | bb529d83b |
hex | 703e6b87f |
30130223231 has 2 divisors, whose sum is σ = 30130223232. Its totient is φ = 30130223230.
The previous prime is 30130223219. The next prime is 30130223239. The reversal of 30130223231 is 13232203103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30130223231 - 222 = 30126028927 is a prime.
It is a super-2 number, since 2×301302232312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30130223239) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065111615 + 15065111616.
It is an arithmetic number, because the mean of its divisors is an integer number (15065111616).
Almost surely, 230130223231 is an apocalyptic number.
30130223231 is a deficient number, since it is larger than the sum of its proper divisors (1).
30130223231 is an equidigital number, since it uses as much as digits as its factorization.
30130223231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 30130223231 its reverse (13232203103), we get a palindrome (43362426334).
The spelling of 30130223231 in words is "thirty billion, one hundred thirty million, two hundred twenty-three thousand, two hundred thirty-one".
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