Base | Representation |
---|---|
bin | 11100000011011010… |
… | …011001100100111111 |
3 | 2212202020220022210001 |
4 | 130003122121210333 |
5 | 443142214220411 |
6 | 21500551255131 |
7 | 2114310654466 |
oct | 340332314477 |
9 | 85666808701 |
10 | 30122023231 |
11 | 11858107983 |
12 | 5a0797a4a7 |
13 | 2ac0749bb1 |
14 | 165a72d9dd |
15 | bb46cddc1 |
hex | 70369993f |
30122023231 has 2 divisors, whose sum is σ = 30122023232. Its totient is φ = 30122023230.
The previous prime is 30122023219. The next prime is 30122023237. The reversal of 30122023231 is 13232022103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30122023231 - 29 = 30122022719 is a prime.
It is a super-2 number, since 2×301220232312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30122023199 and 30122023208.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30122023237) 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, 15061011615 + 15061011616.
It is an arithmetic number, because the mean of its divisors is an integer number (15061011616).
Almost surely, 230122023231 is an apocalyptic number.
30122023231 is a deficient number, since it is larger than the sum of its proper divisors (1).
30122023231 is an equidigital number, since it uses as much as digits as its factorization.
30122023231 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 19.
Adding to 30122023231 its reverse (13232022103), we get a palindrome (43354045334).
The spelling of 30122023231 in words is "thirty billion, one hundred twenty-two million, twenty-three thousand, two hundred thirty-one".
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