Base | Representation |
---|---|
bin | 110000001010011… |
… | …100010110000100 |
3 | 2002022110212212011 |
4 | 300022130112010 |
5 | 3123324401113 |
6 | 212103104004 |
7 | 26011155100 |
oct | 6012342604 |
9 | 2068425764 |
10 | 808043908 |
11 | 385135391 |
12 | 1a6742004 |
13 | cb53b2b9 |
14 | 79460900 |
15 | 4ae1563d |
hex | 3029c584 |
808043908 has 72 divisors (see below), whose sum is σ = 1697049144. Its totient is φ = 335462400.
The previous prime is 808043893. The next prime is 808043909. The reversal of 808043908 is 809340808.
It can be written as a sum of positive squares in 4 ways, for example, as 14607684 + 793436224 = 3822^2 + 28168^2 .
It is not an unprimeable number, because it can be changed into a prime (808043909) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1550688 + ... + 1551208.
It is an arithmetic number, because the mean of its divisors is an integer number (23570127).
Almost surely, 2808043908 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 808043908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848524572).
808043908 is an abundant number, since it is smaller than the sum of its proper divisors (889005236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
808043908 is a wasteful number, since it uses less digits than its factorization.
808043908 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 773 (or 764 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 40.
The square root of 808043908 is about 28426.1131356364. The cubic root of 808043908 is about 931.4187725401.
The spelling of 808043908 in words is "eight hundred eight million, forty-three thousand, nine hundred eight".
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