Base | Representation |
---|---|
bin | 1000001100111… |
… | …10000100101010 |
3 | 11210110122120212 |
4 | 10012132010222 |
5 | 120103224111 |
6 | 10454421122 |
7 | 1463555252 |
oct | 406360452 |
9 | 153418525 |
10 | 68804906 |
11 | 35925165 |
12 | 1b0617a2 |
13 | 11340881 |
14 | 91d0962 |
15 | 609198b |
hex | 419e12a |
68804906 has 8 divisors (see below), whose sum is σ = 103278240. Its totient is φ = 34378828.
The previous prime is 68804887. The next prime is 68804987. The reversal of 68804906 is 60940886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 7916 + ... + 14151.
It is an arithmetic number, because the mean of its divisors is an integer number (12909780).
Almost surely, 268804906 is an apocalyptic number.
68804906 is a deficient number, since it is larger than the sum of its proper divisors (34473334).
68804906 is a wasteful number, since it uses less digits than its factorization.
68804906 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23628.
The product of its (nonzero) digits is 82944, while the sum is 41.
The square root of 68804906 is about 8294.8722714699. The cubic root of 68804906 is about 409.7696624114.
The spelling of 68804906 in words is "sixty-eight million, eight hundred four thousand, nine hundred six".
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