Base | Representation |
---|---|
bin | 1111011111110… |
… | …10100000001101 |
3 | 100001121201201111 |
4 | 13233322200031 |
5 | 231240012114 |
6 | 20522212021 |
7 | 3135663253 |
oct | 757724015 |
9 | 301551644 |
10 | 130000909 |
11 | 67422675 |
12 | 37654011 |
13 | 20c1901c |
14 | 133a05d3 |
15 | b62dbc4 |
hex | 7bfa80d |
130000909 has 2 divisors, whose sum is σ = 130000910. Its totient is φ = 130000908.
The previous prime is 130000847. The next prime is 130000933. The reversal of 130000909 is 909000031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 84235684 + 45765225 = 9178^2 + 6765^2 .
It is an emirp because it is prime and its reverse (909000031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130000909 - 213 = 129992717 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130000909.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130000999) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65000454 + 65000455.
It is an arithmetic number, because the mean of its divisors is an integer number (65000455).
Almost surely, 2130000909 is an apocalyptic number.
It is an amenable number.
130000909 is a deficient number, since it is larger than the sum of its proper divisors (1).
130000909 is an equidigital number, since it uses as much as digits as its factorization.
130000909 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 243, while the sum is 22.
The square root of 130000909 is about 11401.7941132087. The cubic root of 130000909 is about 506.5808826277.
The spelling of 130000909 in words is "one hundred thirty million, nine hundred nine", and thus it is an aban number.
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