Base | Representation |
---|---|
bin | 111101011101000… |
… | …111100000111011 |
3 | 2122212002102021122 |
4 | 331131013200323 |
5 | 4102421340011 |
6 | 250150455455 |
7 | 34356502436 |
oct | 7535074073 |
9 | 2585072248 |
10 | 1031043131 |
11 | 489aa6a68 |
12 | 24936458b |
13 | 1357b8bc1 |
14 | 9ad0c81d |
15 | 607b43db |
hex | 3d74783b |
1031043131 has 2 divisors, whose sum is σ = 1031043132. Its totient is φ = 1031043130.
The previous prime is 1031043071. The next prime is 1031043161. The reversal of 1031043131 is 1313401301.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1031043131 is a prime.
It is a super-2 number, since 2×10310431312 = 2126099875964566322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1031043161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515521565 + 515521566.
It is an arithmetic number, because the mean of its divisors is an integer number (515521566).
Almost surely, 21031043131 is an apocalyptic number.
1031043131 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031043131 is an equidigital number, since it uses as much as digits as its factorization.
1031043131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 1031043131 is about 32109.8603391544. The cubic root of 1031043131 is about 1010.2424444938.
Adding to 1031043131 its reverse (1313401301), we get a palindrome (2344444432).
The spelling of 1031043131 in words is "one billion, thirty-one million, forty-three thousand, one hundred thirty-one".
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