Base | Representation |
---|---|
bin | 1111100011000… |
… | …11011100101001 |
3 | 100002102120100221 |
4 | 13301203130221 |
5 | 231342241021 |
6 | 20535330041 |
7 | 3142433416 |
oct | 761433451 |
9 | 302376327 |
10 | 130430761 |
11 | 6769661a |
12 | 37820921 |
13 | 21039886 |
14 | 1347310d |
15 | b6b6241 |
hex | 7c63729 |
130430761 has 2 divisors, whose sum is σ = 130430762. Its totient is φ = 130430760.
The previous prime is 130430743. The next prime is 130430771. The reversal of 130430761 is 167034031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 96138025 + 34292736 = 9805^2 + 5856^2 .
It is an emirp because it is prime and its reverse (167034031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130430761 - 29 = 130430249 is a prime.
It is not a weakly prime, because it can be changed into another prime (130430701) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215380 + 65215381.
It is an arithmetic number, because the mean of its divisors is an integer number (65215381).
Almost surely, 2130430761 is an apocalyptic number.
It is an amenable number.
130430761 is a deficient number, since it is larger than the sum of its proper divisors (1).
130430761 is an equidigital number, since it uses as much as digits as its factorization.
130430761 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1512, while the sum is 25.
The square root of 130430761 is about 11420.6287480156. The cubic root of 130430761 is about 507.1386101155.
Adding to 130430761 its reverse (167034031), we get a palindrome (297464792).
The spelling of 130430761 in words is "one hundred thirty million, four hundred thirty thousand, seven hundred sixty-one".
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