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6128543009 is a prime number
BaseRepresentation
bin1011011010100101…
…00010010100100001
3120211002221020112102
411231102202110201
5100022401334014
62452043540145
7304604520221
oct55522422441
916732836472
106128543009
112665448086
12123052a655
137688c4314
14421d10081
1525d0798de
hex16d4a2521

6128543009 has 2 divisors, whose sum is σ = 6128543010. Its totient is φ = 6128543008.

The previous prime is 6128542969. The next prime is 6128543017. The reversal of 6128543009 is 9003458216.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5438325025 + 690217984 = 73745^2 + 26272^2 .

It is a cyclic number.

It is not a de Polignac number, because 6128543009 - 216 = 6128477473 is a prime.

It is not a weakly prime, because it can be changed into another prime (6128543089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064271504 + 3064271505.

It is an arithmetic number, because the mean of its divisors is an integer number (3064271505).

Almost surely, 26128543009 is an apocalyptic number.

It is an amenable number.

6128543009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6128543009 is an equidigital number, since it uses as much as digits as its factorization.

6128543009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6128543009 is about 78285.0113942637. The cubic root of 6128543009 is about 1830.0055748484.

The spelling of 6128543009 in words is "six billion, one hundred twenty-eight million, five hundred forty-three thousand, nine".