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23065 = 57659
BaseRepresentation
bin101101000011001
31011122021
411220121
51214230
6254441
7124150
oct55031
934567
1023065
1116369
1211421
13a663
148597
156c7a
hex5a19

23065 has 8 divisors (see below), whose sum is σ = 31680. Its totient is φ = 15792.

The previous prime is 23063. The next prime is 23071. The reversal of 23065 is 56032.

Adding to 23065 its reverse (56032), we get a palindrome (79097).

23065 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23065 - 21 = 23063 is a prime.

It is a plaindrome in base 9.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (23063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295 + ... + 364.

It is an arithmetic number, because the mean of its divisors is an integer number (3960).

223065 is an apocalyptic number.

It is an amenable number.

23065 is a deficient number, since it is larger than the sum of its proper divisors (8615).

23065 is an equidigital number, since it uses as much as digits as its factorization.

23065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23065 is about 151.8716563418. The cubic root of 23065 is about 28.4654346523.

The spelling of 23065 in words is "twenty-three thousand, sixty-five".

Divisors: 1 5 7 35 659 3295 4613 23065