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4163180081 is a prime number
BaseRepresentation
bin1111100000100101…
…0001011000110001
3101202010202110102212
43320021101120301
532011233230311
61525035221505
7205111306154
oct37011213061
911663673385
104163180081
1118470088a5
129822a7895
13514686788
142b6cadc9b
15195759c8b
hexf8251631

4163180081 has 2 divisors, whose sum is σ = 4163180082. Its totient is φ = 4163180080.

The previous prime is 4163180071. The next prime is 4163180089. The reversal of 4163180081 is 1800813614.

It is a happy number.

4163180081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4133847025 + 29333056 = 64295^2 + 5416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4163180081 is a prime.

It is a super-2 number, since 2×41631800812 = 34664136773670333122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4163180089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2081590040 + 2081590041.

It is an arithmetic number, because the mean of its divisors is an integer number (2081590041).

Almost surely, 24163180081 is an apocalyptic number.

It is an amenable number.

4163180081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4163180081 is an equidigital number, since it uses as much as digits as its factorization.

4163180081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4163180081 is about 64522.7098082528. The cubic root of 4163180081 is about 1608.7000142324.

Adding to 4163180081 its reverse (1800813614), we get a palindrome (5963993695).

The spelling of 4163180081 in words is "four billion, one hundred sixty-three million, one hundred eighty thousand, eighty-one".