Base | Representation |
---|---|
bin | 111111110001111… |
… | …1100111011010111 |
3 | 12112011000220212021 |
4 | 1333203330323113 |
5 | 13340333143111 |
6 | 552210234011 |
7 | 104014546033 |
oct | 17743747327 |
9 | 5464026767 |
10 | 2140131031 |
11 | 9a9059135 |
12 | 4b8885907 |
13 | 2814cc22c |
14 | 1643351c3 |
15 | c7d42d71 |
hex | 7f8fced7 |
2140131031 has 2 divisors, whose sum is σ = 2140131032. Its totient is φ = 2140131030.
The previous prime is 2140131001. The next prime is 2140131073. The reversal of 2140131031 is 1301310412.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2140131031 - 213 = 2140122839 is a prime.
It is a super-2 number, since 2×21401310312 = 9160321659698245922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2140130996 and 2140131014.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2140131001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070065515 + 1070065516.
It is an arithmetic number, because the mean of its divisors is an integer number (1070065516).
Almost surely, 22140131031 is an apocalyptic number.
2140131031 is a deficient number, since it is larger than the sum of its proper divisors (1).
2140131031 is an equidigital number, since it uses as much as digits as its factorization.
2140131031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 2140131031 is about 46261.5502442363. The cubic root of 2140131031 is about 1288.6850432894.
Adding to 2140131031 its reverse (1301310412), we get a palindrome (3441441443).
The spelling of 2140131031 in words is "two billion, one hundred forty million, one hundred thirty-one thousand, thirty-one".
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