Base | Representation |
---|---|
bin | 1000001100111… |
… | …00010100000100 |
3 | 11210110021200222 |
4 | 10012130110010 |
5 | 120103011300 |
6 | 10454323512 |
7 | 1463525246 |
oct | 406342404 |
9 | 153407628 |
10 | 68797700 |
11 | 3591a804 |
12 | 1b059598 |
13 | 1133a4ca |
14 | 91cc096 |
15 | 608e785 |
hex | 419c504 |
68797700 has 18 divisors (see below), whose sum is σ = 149291226. Its totient is φ = 27519040.
The previous prime is 68797699. The next prime is 68797709. The reversal of 68797700 is 779786.
68797700 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 3 ways, for example, as 1295044 + 67502656 = 1138^2 + 8216^2 .
68797700 is strictly pandigital in base 9.
It is not an unprimeable number, because it can be changed into a prime (68797709) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343889 + ... + 344088.
It is an arithmetic number, because the mean of its divisors is an integer number (8293957).
Almost surely, 268797700 is an apocalyptic number.
It is an amenable number.
68797700 is an abundant number, since it is smaller than the sum of its proper divisors (80493526).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68797700 is a wasteful number, since it uses less digits than its factorization.
68797700 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 687991 (or 687984 counting only the distinct ones).
The product of its (nonzero) digits is 148176, while the sum is 44.
The square root of 68797700 is about 8294.4378953610. The cubic root of 68797700 is about 409.7553567296.
The spelling of 68797700 in words is "sixty-eight million, seven hundred ninety-seven thousand, seven hundred".
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