Base | Representation |
---|---|
bin | 100111010011… |
… | …111001010101 |
3 | 201101112221201 |
4 | 213103321111 |
5 | 10114230414 |
6 | 1004512501 |
7 | 153410023 |
oct | 47237125 |
9 | 21345851 |
10 | 10305109 |
11 | 58a9421 |
12 | 354b731 |
13 | 219a6c9 |
14 | 1523713 |
15 | d88574 |
hex | 9d3e55 |
10305109 has 2 divisors, whose sum is σ = 10305110. Its totient is φ = 10305108.
The previous prime is 10305107. The next prime is 10305133. The reversal of 10305109 is 90150301.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6265009 + 4040100 = 2503^2 + 2010^2 .
It is an emirp because it is prime and its reverse (90150301) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10305109 - 21 = 10305107 is a prime.
Together with 10305107, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10305107) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5152554 + 5152555.
It is an arithmetic number, because the mean of its divisors is an integer number (5152555).
Almost surely, 210305109 is an apocalyptic number.
It is an amenable number.
10305109 is a deficient number, since it is larger than the sum of its proper divisors (1).
10305109 is an equidigital number, since it uses as much as digits as its factorization.
10305109 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 135, while the sum is 19.
The square root of 10305109 is about 3210.1571612617. The cubic root of 10305109 is about 217.6126795366.
The spelling of 10305109 in words is "ten million, three hundred five thousand, one hundred nine".
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