Base | Representation |
---|---|
bin | 111001010110… |
… | …1010010101001 |
3 | 2002120201012002 |
4 | 1302231102221 |
5 | 30144214204 |
6 | 2552300345 |
7 | 513406301 |
oct | 162552251 |
9 | 62521162 |
10 | 30069929 |
11 | 15a78a8a |
12 | a0a16b5 |
13 | 62caa76 |
14 | 3dca601 |
15 | 298e91e |
hex | 1cad4a9 |
30069929 has 2 divisors, whose sum is σ = 30069930. Its totient is φ = 30069928.
The previous prime is 30069911. The next prime is 30069931. The reversal of 30069929 is 92996003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23541904 + 6528025 = 4852^2 + 2555^2 .
It is an emirp because it is prime and its reverse (92996003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30069929 - 216 = 30004393 is a prime.
Together with 30069931, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 30069892 and 30069901.
It is not a weakly prime, because it can be changed into another prime (30069959) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15034964 + 15034965.
It is an arithmetic number, because the mean of its divisors is an integer number (15034965).
Almost surely, 230069929 is an apocalyptic number.
It is an amenable number.
30069929 is a deficient number, since it is larger than the sum of its proper divisors (1).
30069929 is an equidigital number, since it uses as much as digits as its factorization.
30069929 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 26244, while the sum is 38.
The square root of 30069929 is about 5483.6054745031. The cubic root of 30069929 is about 310.9644917639.
The spelling of 30069929 in words is "thirty million, sixty-nine thousand, nine hundred twenty-nine".
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