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20300023213 is a prime number
BaseRepresentation
bin10010111001111110…
…011100010110101101
31221101202002000201121
4102321332130112231
5313033301220323
613154203540541
71316024231101
oct227176342655
957352060647
1020300023213
118677919998
123b2652a751
131bb68b3172
14da80a3901
157dc281a5d
hex4b9f9c5ad

20300023213 has 2 divisors, whose sum is σ = 20300023214. Its totient is φ = 20300023212.

The previous prime is 20300023193. The next prime is 20300023231. The reversal of 20300023213 is 31232000302.

Together with next prime (20300023231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19847737924 + 452285289 = 140882^2 + 21267^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300023213 - 229 = 19763152301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300023253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150011606 + 10150011607.

It is an arithmetic number, because the mean of its divisors is an integer number (10150011607).

Almost surely, 220300023213 is an apocalyptic number.

It is an amenable number.

20300023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300023213 is an equidigital number, since it uses as much as digits as its factorization.

20300023213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20300023213 its reverse (31232000302), we get a palindrome (51532023515).

The spelling of 20300023213 in words is "twenty billion, three hundred million, twenty-three thousand, two hundred thirteen".