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34490747 is a prime number
BaseRepresentation
bin1000001110010…
…0100101111011
32101220022102002
42003210211323
532312200442
63231131215
7566111054
oct203444573
971808362
1034490747
1118518455
12b673b0b
1371b8035
14481b72b
153064732
hex20e497b

34490747 has 2 divisors, whose sum is σ = 34490748. Its totient is φ = 34490746.

The previous prime is 34490737. The next prime is 34490749. The reversal of 34490747 is 74709443.

It is a happy number.

34490747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (74709443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34490747 - 210 = 34489723 is a prime.

It is a super-2 number, since 2×344907472 = 2379223257236018, which contains 22 as substring.

Together with 34490749, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34490747.

It is not a weakly prime, because it can be changed into another prime (34490749) 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, 17245373 + 17245374.

It is an arithmetic number, because the mean of its divisors is an integer number (17245374).

Almost surely, 234490747 is an apocalyptic number.

34490747 is a deficient number, since it is larger than the sum of its proper divisors (1).

34490747 is an equidigital number, since it uses as much as digits as its factorization.

34490747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 34490747 is about 5872.8823417467. The cubic root of 34490747 is about 325.5123972491.

The spelling of 34490747 in words is "thirty-four million, four hundred ninety thousand, seven hundred forty-seven".