Base | Representation |
---|---|
bin | 111001111110… |
… | …0110000100101 |
3 | 2010012020200122 |
4 | 1303330300211 |
5 | 30240123204 |
6 | 3003251325 |
7 | 516233261 |
oct | 163746045 |
9 | 63166618 |
10 | 30395429 |
11 | 16180599 |
12 | a219b45 |
13 | 63b2c7c |
14 | 40730a1 |
15 | 2a060be |
hex | 1cfcc25 |
30395429 has 2 divisors, whose sum is σ = 30395430. Its totient is φ = 30395428.
The previous prime is 30395423. The next prime is 30395437. The reversal of 30395429 is 92459303.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19492225 + 10903204 = 4415^2 + 3302^2 .
It is a cyclic number.
It is not a de Polignac number, because 30395429 - 220 = 29346853 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30395423) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15197714 + 15197715.
It is an arithmetic number, because the mean of its divisors is an integer number (15197715).
Almost surely, 230395429 is an apocalyptic number.
It is an amenable number.
30395429 is a deficient number, since it is larger than the sum of its proper divisors (1).
30395429 is an equidigital number, since it uses as much as digits as its factorization.
30395429 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 29160, while the sum is 35.
The square root of 30395429 is about 5513.2049662606. The cubic root of 30395429 is about 312.0825068066.
The spelling of 30395429 in words is "thirty million, three hundred ninety-five thousand, four hundred twenty-nine".
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