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3031130213 is a prime number
BaseRepresentation
bin1011010010101011…
…0110000001100101
321211020121100221222
42310222312001211
522201432131323
61220435350125
7135054116216
oct26452660145
97736540858
103031130213
111315aa2aa1
12707152345
13393c93a97
1420a7cb40d
1512b1929c8
hexb4ab6065

3031130213 has 2 divisors, whose sum is σ = 3031130214. Its totient is φ = 3031130212.

The previous prime is 3031130197. The next prime is 3031130231. The reversal of 3031130213 is 3120311303.

Together with next prime (3031130231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2811438529 + 219691684 = 53023^2 + 14822^2 .

It is an emirp because it is prime and its reverse (3120311303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3031130213 - 24 = 3031130197 is a prime.

It is a super-2 number, since 2×30311302132 = 18375500736322850738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3031130191 and 3031130200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3031130273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515565106 + 1515565107.

It is an arithmetic number, because the mean of its divisors is an integer number (1515565107).

Almost surely, 23031130213 is an apocalyptic number.

It is an amenable number.

3031130213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031130213 is an equidigital number, since it uses as much as digits as its factorization.

3031130213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3031130213 is about 55055.7010036200. The cubic root of 3031130213 is about 1447.2210290615.

Adding to 3031130213 its reverse (3120311303), we get a palindrome (6151441516).

The spelling of 3031130213 in words is "three billion, thirty-one million, one hundred thirty thousand, two hundred thirteen".