Base | Representation |
---|---|
bin | 101100010000… |
… | …0000001000000 |
3 | 1121122200011011 |
4 | 1120200001000 |
5 | 21414343213 |
6 | 2145130304 |
7 | 401123632 |
oct | 130400100 |
9 | 47580134 |
10 | 23199808 |
11 | 121063a5 |
12 | 7929994 |
13 | 4a639c8 |
14 | 311ca52 |
15 | 208403d |
hex | 1620040 |
23199808 has 28 divisors (see below), whose sum is σ = 46565820. Its totient is φ = 11466752.
The previous prime is 23199773. The next prime is 23199829. The reversal of 23199808 is 80899132.
It can be written as a sum of positive squares in 2 ways, for example, as 3415104 + 19784704 = 1848^2 + 4448^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3660 + ... + 7732.
It is an arithmetic number, because the mean of its divisors is an integer number (1663065).
Almost surely, 223199808 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23199808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23282910).
23199808 is an abundant number, since it is smaller than the sum of its proper divisors (23366012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23199808 is an equidigital number, since it uses as much as digits as its factorization.
23199808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4174 (or 4164 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 40.
The square root of 23199808 is about 4816.6179005605. The cubic root of 23199808 is about 285.2078426439.
The spelling of 23199808 in words is "twenty-three million, one hundred ninety-nine thousand, eight hundred eight".
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