Base | Representation |
---|---|
bin | 11010001111101100000000 |
3 | 110221112120211 |
4 | 122033230000 |
5 | 3230130000 |
6 | 403243504 |
7 | 112323211 |
oct | 32175400 |
9 | 13845524 |
10 | 6880000 |
11 | 397a056 |
12 | 2379594 |
13 | 156b70a |
14 | cb1408 |
15 | 90d7ba |
hex | 68fb00 |
6880000 has 90 divisors (see below), whose sum is σ = 17560004. Its totient is φ = 2688000.
The previous prime is 6879997. The next prime is 6880009. The reversal of 6880000 is 886.
6880000 is nontrivially palindromic in base 7.
It is not an unprimeable number, because it can be changed into a prime (6880009) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159979 + ... + 160021.
Almost surely, 26880000 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 6880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8780002).
6880000 is an abundant number, since it is smaller than the sum of its proper divisors (10680004).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6880000 is an frugal number, since it uses more digits than its factorization.
6880000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79 (or 50 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 22.
The square root of 6880000 is about 2622.9754097208. The cubic root of 6880000 is about 190.1937082612.
Adding to 6880000 its reverse (886), we get a palindrome (6880886).
The spelling of 6880000 in words is "six million, eight hundred eighty thousand".
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