Base | Representation |
---|---|
bin | 111101011101011… |
… | …100110000010011 |
3 | 2122212020211121212 |
4 | 331131130300103 |
5 | 4102432131011 |
6 | 250152410335 |
7 | 34360314203 |
oct | 7535346023 |
9 | 2585224555 |
10 | 1031130131 |
11 | 48a056369 |
12 | 2493a69ab |
13 | 135819695 |
14 | 9ad32403 |
15 | 607d008b |
hex | 3d75cc13 |
1031130131 has 2 divisors, whose sum is σ = 1031130132. Its totient is φ = 1031130130.
The previous prime is 1031130127. The next prime is 1031130143. The reversal of 1031130131 is 1310311301.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1031130131 - 22 = 1031130127 is a prime.
It is a super-2 number, since 2×10311301312 = 2126458694112154322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1031130151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515565065 + 515565066.
It is an arithmetic number, because the mean of its divisors is an integer number (515565066).
Almost surely, 21031130131 is an apocalyptic number.
1031130131 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031130131 is an equidigital number, since it uses as much as digits as its factorization.
1031130131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 27, while the sum is 14.
The square root of 1031130131 is about 32111.2150346261. The cubic root of 1031130131 is about 1010.2708586367.
Adding to 1031130131 its reverse (1310311301), we get a palindrome (2341441432).
The spelling of 1031130131 in words is "one billion, thirty-one million, one hundred thirty thousand, one hundred thirty-one".
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