Search a number
-
+
3130301021 is a prime number
BaseRepresentation
bin1011101010010100…
…1001101001011101
322002011012202201212
42322211021221131
522402324113041
61234341114205
7140400056021
oct27245115135
98064182655
103130301021
111366a78541
127343b8965
133ab6a7033
14219a44381
15134c318eb
hexba949a5d

3130301021 has 2 divisors, whose sum is σ = 3130301022. Its totient is φ = 3130301020.

The previous prime is 3130300931. The next prime is 3130301023. The reversal of 3130301021 is 1201030313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2874460996 + 255840025 = 53614^2 + 15995^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130301021 - 226 = 3063192157 is a prime.

Together with 3130301023, 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 = 3130300987 and 3130301005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130301023) 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, 1565150510 + 1565150511.

It is an arithmetic number, because the mean of its divisors is an integer number (1565150511).

Almost surely, 23130301021 is an apocalyptic number.

It is an amenable number.

3130301021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130301021 is an equidigital number, since it uses as much as digits as its factorization.

3130301021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 3130301021 is about 55949.0931204430. The cubic root of 3130301021 is about 1462.8350836756.

Adding to 3130301021 its reverse (1201030313), we get a palindrome (4331331334).

The spelling of 3130301021 in words is "three billion, one hundred thirty million, three hundred one thousand, twenty-one".