Search a number
-
+
12244181 is a prime number
BaseRepresentation
bin101110101101…
…010011010101
3212001001212012
4232231103111
511113303211
61114234005
7206034215
oct56552325
925031765
1012244181
116a03264
124125905
1326c91a1
1418aa245
15111cd8b
hexbad4d5

12244181 has 2 divisors, whose sum is σ = 12244182. Its totient is φ = 12244180.

The previous prime is 12244147. The next prime is 12244187. The reversal of 12244181 is 18144221.

12244181 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., 9891025 + 2353156 = 3145^2 + 1534^2 .

It is a cyclic number.

It is not a de Polignac number, because 12244181 - 210 = 12243157 is a prime.

It is a super-2 number, since 2×122441812 = 299839936721522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12244187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6122090 + 6122091.

It is an arithmetic number, because the mean of its divisors is an integer number (6122091).

Almost surely, 212244181 is an apocalyptic number.

It is an amenable number.

12244181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12244181 is an equidigital number, since it uses as much as digits as its factorization.

12244181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 23.

The square root of 12244181 is about 3499.1686155428. The cubic root of 12244181 is about 230.4853079664.

The spelling of 12244181 in words is "twelve million, two hundred forty-four thousand, one hundred eighty-one".