Search a number
-
+
8981134181 = 43272075603
BaseRepresentation
bin10000101110101000…
…10011101101100101
3212011220120212222022
420113110103231211
5121343132243211
64043104512525
7435363244445
oct102724235545
925156525868
108981134181
113899686048
1218a791b745
13b018a61a6
14612b04125
15378701bdb
hex217513b65

8981134181 has 4 divisors (see below), whose sum is σ = 8983214112. Its totient is φ = 8979054252.

The previous prime is 8981134177. The next prime is 8981134213. The reversal of 8981134181 is 1814311898.

It is a happy number.

8981134181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8981134181 - 22 = 8981134177 is a prime.

It is a super-2 number, since 2×89811341812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981134121) 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 in 3 ways as a sum of consecutive naturals, for example, 1033475 + ... + 1042128.

It is an arithmetic number, because the mean of its divisors is an integer number (2245803528).

Almost surely, 28981134181 is an apocalyptic number.

It is an amenable number.

8981134181 is a deficient number, since it is larger than the sum of its proper divisors (2079931).

8981134181 is a wasteful number, since it uses less digits than its factorization.

8981134181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079930.

The product of its digits is 55296, while the sum is 44.

The square root of 8981134181 is about 94768.8460465780. The cubic root of 8981134181 is about 2078.6293809427.

The spelling of 8981134181 in words is "eight billion, nine hundred eighty-one million, one hundred thirty-four thousand, one hundred eighty-one".

Divisors: 1 4327 2075603 8981134181