Base | Representation |
---|---|
bin | 111001011110… |
… | …1001011101111 |
3 | 2002201000110222 |
4 | 1302331023233 |
5 | 30203310043 |
6 | 2553521555 |
7 | 514100132 |
oct | 162751357 |
9 | 62630428 |
10 | 30135023 |
11 | 16012986 |
12 | a1132bb |
13 | 6321599 |
14 | 4006219 |
15 | 29a3d68 |
hex | 1cbd2ef |
30135023 has 2 divisors, whose sum is σ = 30135024. Its totient is φ = 30135022.
The previous prime is 30135013. The next prime is 30135029. The reversal of 30135023 is 32053103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30135023 - 218 = 29872879 is a prime.
It is a super-2 number, since 2×301350232 = 1816239222421058, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30134992 and 30135010.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30135029) 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, 15067511 + 15067512.
It is an arithmetic number, because the mean of its divisors is an integer number (15067512).
Almost surely, 230135023 is an apocalyptic number.
30135023 is a deficient number, since it is larger than the sum of its proper divisors (1).
30135023 is an equidigital number, since it uses as much as digits as its factorization.
30135023 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 270, while the sum is 17.
The square root of 30135023 is about 5489.5375943699. The cubic root of 30135023 is about 311.1887172563.
Adding to 30135023 its reverse (32053103), we get a palindrome (62188126).
The spelling of 30135023 in words is "thirty million, one hundred thirty-five thousand, twenty-three".
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