Base | Representation |
---|---|
bin | 11001111110010001001000 |
3 | 110210220201011 |
4 | 121332101020 |
5 | 3220334043 |
6 | 401533304 |
7 | 111605200 |
oct | 31762110 |
9 | 13726634 |
10 | 6808648 |
11 | 3930490 |
12 | 2344234 |
13 | 15450b2 |
14 | c93400 |
15 | 8e759d |
hex | 67e448 |
6808648 has 48 divisors (see below), whose sum is σ = 16210800. Its totient is φ = 2651040.
The previous prime is 6808643. The next prime is 6808651. The reversal of 6808648 is 8468086.
It is a happy number.
It is an Ulam number.
It is a self number, because there is not a number n which added to its sum of digits gives 6808648.
It is not an unprimeable number, because it can be changed into a prime (6808643) 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 11 ways as a sum of consecutive naturals, for example, 3523 + ... + 5101.
It is an arithmetic number, because the mean of its divisors is an integer number (337725).
Almost surely, 26808648 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 6808648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8105400).
6808648 is an abundant number, since it is smaller than the sum of its proper divisors (9402152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6808648 is a wasteful number, since it uses less digits than its factorization.
6808648 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1610 (or 1599 counting only the distinct ones).
The product of its (nonzero) digits is 73728, while the sum is 40.
The square root of 6808648 is about 2609.3386135188. The cubic root of 6808648 is about 189.5339269020.
The spelling of 6808648 in words is "six million, eight hundred eight thousand, six hundred forty-eight".
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