Base | Representation |
---|---|
bin | 100001101011101… |
… | …1111010011101101 |
3 | 2220202201200111012 |
4 | 1003113133103231 |
5 | 4303314343041 |
6 | 304052435005 |
7 | 40002543113 |
oct | 10327372355 |
9 | 2822650435 |
10 | 1130231021 |
11 | 52aa93327 |
12 | 276618a65 |
13 | 150206b6a |
14 | aa16bab3 |
15 | 693583eb |
hex | 435df4ed |
1130231021 has 2 divisors, whose sum is σ = 1130231022. Its totient is φ = 1130231020.
The previous prime is 1130230999. The next prime is 1130231023. The reversal of 1130231021 is 1201320311.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 582015625 + 548215396 = 24125^2 + 23414^2 .
It is a cyclic number.
It is not a de Polignac number, because 1130231021 - 230 = 56489197 is a prime.
Together with 1130231023, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 1130230987 and 1130231005.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1130231023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565115510 + 565115511.
It is an arithmetic number, because the mean of its divisors is an integer number (565115511).
Almost surely, 21130231021 is an apocalyptic number.
It is an amenable number.
1130231021 is a deficient number, since it is larger than the sum of its proper divisors (1).
1130231021 is an equidigital number, since it uses as much as digits as its factorization.
1130231021 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 1130231021 is about 33618.9086824662. The cubic root of 1130231021 is about 1041.6514138723.
Adding to 1130231021 its reverse (1201320311), we get a palindrome (2331551332).
The spelling of 1130231021 in words is "one billion, one hundred thirty million, two hundred thirty-one thousand, twenty-one".
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