Base | Representation |
---|---|
bin | 110000100001… |
… | …000010000000 |
3 | 212221011002202 |
4 | 300201002000 |
5 | 11223440313 |
6 | 1132332332 |
7 | 213050216 |
oct | 60410200 |
9 | 25834082 |
10 | 12718208 |
11 | 71a7418 |
12 | 43140a8 |
13 | 2833b89 |
14 | 1990cb6 |
15 | 11b3558 |
hex | c21080 |
12718208 has 32 divisors (see below), whose sum is σ = 25732560. Its totient is φ = 6259968.
The previous prime is 12718187. The next prime is 12718213. The reversal of 12718208 is 80281721.
It is a tau number, because it is divible by the number of its divisors (32).
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, 7835 + ... + 9317.
Almost surely, 212718208 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 12718208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12866280).
12718208 is an abundant number, since it is smaller than the sum of its proper divisors (13014352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12718208 is an equidigital number, since it uses as much as digits as its factorization.
12718208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1564 (or 1552 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 29.
The square root of 12718208 is about 3566.2596652515. The cubic root of 12718208 is about 233.4221013727.
Adding to 12718208 its reverse (80281721), we get a palindrome (92999929).
The spelling of 12718208 in words is "twelve million, seven hundred eighteen thousand, two hundred eight".
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