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8064185461 is a prime number
BaseRepresentation
bin1111000001010100…
…11011010001110101
3202211000012001210121
413200222123101311
5113003412413321
63412111251541
7403560305533
oct74052332165
922730161717
108064185461
113469027992
121690819bb1
139b6927197
14567015153
15322e78441
hex1e0a9b475

8064185461 has 2 divisors, whose sum is σ = 8064185462. Its totient is φ = 8064185460.

The previous prime is 8064185419. The next prime is 8064185509. The reversal of 8064185461 is 1645814608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8058473361 + 5712100 = 89769^2 + 2390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8064185461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8064185401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4032092730 + 4032092731.

It is an arithmetic number, because the mean of its divisors is an integer number (4032092731).

Almost surely, 28064185461 is an apocalyptic number.

It is an amenable number.

8064185461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8064185461 is an equidigital number, since it uses as much as digits as its factorization.

8064185461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 8064185461 is about 89800.8099128287. The cubic root of 8064185461 is about 2005.3345470698.

The spelling of 8064185461 in words is "eight billion, sixty-four million, one hundred eighty-five thousand, four hundred sixty-one".