Search a number
-
+
23008 = 25719
BaseRepresentation
bin101100111100000
31011120011
411213200
51214013
6254304
7124036
oct54740
934504
1023008
1116317
1211394
13a61b
148556
156c3d
hex59e0

23008 has 12 divisors (see below), whose sum is σ = 45360. Its totient is φ = 11488.

The previous prime is 23003. The next prime is 23011. The reversal of 23008 is 80032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003) by changing a digit.

23008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 328 + ... + 391.

It is an arithmetic number, because the mean of its divisors is an integer number (3780).

223008 is an apocalyptic number.

It is an amenable number.

23008 is a deficient number, since it is larger than the sum of its proper divisors (22352).

23008 is an equidigital number, since it uses as much as digits as its factorization.

23008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23008 is about 151.6838818069. The cubic root of 23008 is about 28.4419666534.

The spelling of 23008 in words is "twenty-three thousand, eight".

Divisors: 1 2 4 8 16 32 719 1438 2876 5752 11504 23008