Search a number
BaseRepresentation
bin101101001010…
…1110000100001
31122120011201010
41122111300201
522030311311
62203331133
7405202653
oct132256041
948504633
1023682081
1112405775
127b20aa9
134ba2387
1432066d3
15212bda6
hex1695c21

23682081 has 4 divisors (see below), whose sum is σ = 31576112. Its totient is φ = 15788052.

The previous prime is 23682077. The next prime is 23682083. The reversal of 23682081 is 18028632.

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 not a de Polignac number, because 23682081 - 22 = 23682077 is a prime.

It is a super-2 number, since 2×236820812 = 1121681920981122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23682083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947011 + ... + 3947016.

It is an arithmetic number, because the mean of its divisors is an integer number (7894028).

Almost surely, 223682081 is an apocalyptic number.

It is an amenable number.

23682081 is a deficient number, since it is larger than the sum of its proper divisors (7894031).

23682081 is an equidigital number, since it uses as much as digits as its factorization.

23682081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894030.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 23682081 is about 4866.4238409740. The cubic root of 23682081 is about 287.1705857801.

The spelling of 23682081 in words is "twenty-three million, six hundred eighty-two thousand, eighty-one".

Divisors: 1 3 7894027 23682081