Search a number
-
+
38161271111 is a prime number
BaseRepresentation
bin100011100010100101…
…101100100101000111
310122111112011102122112
4203202211230211013
51111123241133421
625310412251235
72520446311115
oct434245544507
9118445142575
1038161271111
1115203051897
127490170b1b
1337a21523c2
141bc02d2ab5
15ed537d45b
hex8e296c947

38161271111 has 2 divisors, whose sum is σ = 38161271112. Its totient is φ = 38161271110.

The previous prime is 38161271087. The next prime is 38161271117. The reversal of 38161271111 is 11117216183.

It is a strong prime.

It is an emirp because it is prime and its reverse (11117216183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38161271111 - 26 = 38161271047 is a prime.

It is a super-2 number, since 2×381612711112 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38161271117) 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, 19080635555 + 19080635556.

It is an arithmetic number, because the mean of its divisors is an integer number (19080635556).

Almost surely, 238161271111 is an apocalyptic number.

38161271111 is a deficient number, since it is larger than the sum of its proper divisors (1).

38161271111 is an equidigital number, since it uses as much as digits as its factorization.

38161271111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 32.

Adding to 38161271111 its reverse (11117216183), we get a palindrome (49278487294).

The spelling of 38161271111 in words is "thirty-eight billion, one hundred sixty-one million, two hundred seventy-one thousand, one hundred eleven".