Base | Representation |
---|---|
bin | 110000110111… |
… | …000000010000 |
3 | 220002201120002 |
4 | 300313000100 |
5 | 11234330313 |
6 | 1134305132 |
7 | 213603500 |
oct | 60670020 |
9 | 26081502 |
10 | 12808208 |
11 | 7258aa6 |
12 | 43581a8 |
13 | 2865b2a |
14 | 19b5a00 |
15 | 11d0058 |
hex | c37010 |
12808208 has 90 divisors (see below), whose sum is σ = 31583358. Its totient is φ = 4999680.
The previous prime is 12808193. The next prime is 12808219. The reversal of 12808208 is 80280821.
It can be written as a sum of positive squares in only one way, i.e., 12054784 + 753424 = 3472^2 + 868^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 413153 + ... + 413183.
Almost surely, 212808208 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 12808208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15791679).
12808208 is an abundant number, since it is smaller than the sum of its proper divisors (18775150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12808208 is a wasteful number, since it uses less digits than its factorization.
12808208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101 (or 57 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 29.
The square root of 12808208 is about 3578.8556830361. The cubic root of 12808208 is about 233.9714090765.
The spelling of 12808208 in words is "twelve million, eight hundred eight thousand, two hundred eight".
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