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388848893 is a prime number
BaseRepresentation
bin10111001011010…
…101110011111101
31000002200120101212
4113023111303331
51244021131033
6102330214205
712431106146
oct2713256375
91002616355
10388848893
1118a549a24
12aa284365
1362738b04
1439900acd
152420e748
hex172d5cfd

388848893 has 2 divisors, whose sum is σ = 388848894. Its totient is φ = 388848892.

The previous prime is 388848869. The next prime is 388848917. The reversal of 388848893 is 398848883.

It is a balanced prime because it is at equal distance from previous prime (388848869) and next prime (388848917).

It can be written as a sum of positive squares in only one way, i.e., 388760089 + 88804 = 19717^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 388848893 - 218 = 388586749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388848853) 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, 194424446 + 194424447.

It is an arithmetic number, because the mean of its divisors is an integer number (194424447).

Almost surely, 2388848893 is an apocalyptic number.

It is an amenable number.

388848893 is a deficient number, since it is larger than the sum of its proper divisors (1).

388848893 is an equidigital number, since it uses as much as digits as its factorization.

388848893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10616832, while the sum is 59.

The square root of 388848893 is about 19719.2518367204. The cubic root of 388848893 is about 729.8948325385.

The spelling of 388848893 in words is "three hundred eighty-eight million, eight hundred forty-eight thousand, eight hundred ninety-three".