Base | Representation |
---|---|
bin | 1111100010000… |
… | …11000110001001 |
3 | 100002011211121002 |
4 | 13301003012021 |
5 | 231324020444 |
6 | 20532424345 |
7 | 3141342164 |
oct | 761030611 |
9 | 302154532 |
10 | 130298249 |
11 | 67606004 |
12 | 377780b5 |
13 | 20cc1473 |
14 | 1343aadb |
15 | b68bd4e |
hex | 7c43189 |
130298249 has 2 divisors, whose sum is σ = 130298250. Its totient is φ = 130298248.
The previous prime is 130298191. The next prime is 130298269. The reversal of 130298249 is 942892031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 65205625 + 65092624 = 8075^2 + 8068^2 .
It is an emirp because it is prime and its reverse (942892031) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130298249 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (130298269) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65149124 + 65149125.
It is an arithmetic number, because the mean of its divisors is an integer number (65149125).
Almost surely, 2130298249 is an apocalyptic number.
It is an amenable number.
130298249 is a deficient number, since it is larger than the sum of its proper divisors (1).
130298249 is an equidigital number, since it uses as much as digits as its factorization.
130298249 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 130298249 is about 11414.8258418602. The cubic root of 130298249 is about 506.9668083055.
It can be divided in two parts, 1302982 and 49, that added together give a palindrome (1303031).
The spelling of 130298249 in words is "one hundred thirty million, two hundred ninety-eight thousand, two hundred forty-nine".
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