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49392389 is a prime number
BaseRepresentation
bin1011110001101…
…0101100000101
310102221101121202
42330122230011
5100121024024
64522352245
71136554064
oct274325405
9112841552
1049392389
1125976262
121465b685
13a304987
1467ba1db
154509bae
hex2f1ab05

49392389 has 2 divisors, whose sum is σ = 49392390. Its totient is φ = 49392388.

The previous prime is 49392383. The next prime is 49392403. The reversal of 49392389 is 98329394.

49392389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41383489 + 8008900 = 6433^2 + 2830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49392389 is a prime.

It is a super-2 number, since 2×493923892 = 4879216182254642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen 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 (49392383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24696194 + 24696195.

It is an arithmetic number, because the mean of its divisors is an integer number (24696195).

Almost surely, 249392389 is an apocalyptic number.

It is an amenable number.

49392389 is a deficient number, since it is larger than the sum of its proper divisors (1).

49392389 is an equidigital number, since it uses as much as digits as its factorization.

49392389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 49392389 is about 7027.9718980656. The cubic root of 49392389 is about 366.9047584033.

The spelling of 49392389 in words is "forty-nine million, three hundred ninety-two thousand, three hundred eighty-nine".