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8478630841 is a prime number
BaseRepresentation
bin1111110010101110…
…11010001110111001
3210212220001001222111
413321113122032321
5114331012141331
63521154252321
7420052113232
oct77127321671
923786031874
108478630841
113660a6992a
1217875870a1
13a51755835
145a609a089
15349541db1
hex1f95da3b9

8478630841 has 2 divisors, whose sum is σ = 8478630842. Its totient is φ = 8478630840.

The previous prime is 8478630827. The next prime is 8478630859. The reversal of 8478630841 is 1480368748.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5386826025 + 3091804816 = 73395^2 + 55604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8478630841 is a prime.

It is not a weakly prime, because it can be changed into another prime (8478636841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239315420 + 4239315421.

It is an arithmetic number, because the mean of its divisors is an integer number (4239315421).

Almost surely, 28478630841 is an apocalyptic number.

It is an amenable number.

8478630841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478630841 is an equidigital number, since it uses as much as digits as its factorization.

8478630841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 8478630841 is about 92079.4811073564. The cubic root of 8478630841 is about 2039.1158895605.

The spelling of 8478630841 in words is "eight billion, four hundred seventy-eight million, six hundred thirty thousand, eight hundred forty-one".