Search a number
-
+
5183542181 is a prime number
BaseRepresentation
bin1001101001111011…
…01001001110100101
3111101020202020002202
410310331221032211
541103441322211
62214205144245
7242311244606
oct46475511645
914336666082
105183542181
11221aa79a64
121007b5b085
13647ba2b2c
143725dbdad
1520510e53b
hex134f693a5

5183542181 has 2 divisors, whose sum is σ = 5183542182. Its totient is φ = 5183542180.

The previous prime is 5183542141. The next prime is 5183542193. The reversal of 5183542181 is 1812453815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5182560100 + 982081 = 71990^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 5183542181 - 226 = 5116433317 is a prime.

It is a super-2 number, since 2×51835421812 = 53738219084412473522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5183542141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2591771090 + 2591771091.

It is an arithmetic number, because the mean of its divisors is an integer number (2591771091).

Almost surely, 25183542181 is an apocalyptic number.

It is an amenable number.

5183542181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5183542181 is an equidigital number, since it uses as much as digits as its factorization.

5183542181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 38.

The square root of 5183542181 is about 71996.8206311918. The cubic root of 5183542181 is about 1730.6485346239.

Adding to 5183542181 its reverse (1812453815), we get a palindrome (6995995996).

The spelling of 5183542181 in words is "five billion, one hundred eighty-three million, five hundred forty-two thousand, one hundred eighty-one".