Base | Representation |
---|---|
bin | 1000001001111… |
… | …00111001011100 |
3 | 11202201102121000 |
4 | 10010330321130 |
5 | 120003010001 |
6 | 10442110300 |
7 | 1460306646 |
oct | 404747134 |
9 | 152642530 |
10 | 68406876 |
11 | 3568310a |
12 | 1aaab390 |
13 | 11231655 |
14 | 9129896 |
15 | 6013a86 |
hex | 413ce5c |
68406876 has 48 divisors (see below), whose sum is σ = 185068800. Its totient is φ = 21810096.
The previous prime is 68406869. The next prime is 68406881. The reversal of 68406876 is 67860486.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11286 + ... + 16253.
It is an arithmetic number, because the mean of its divisors is an integer number (3855600).
Almost surely, 268406876 is an apocalyptic number.
It is an amenable number.
68406876 is an abundant number, since it is smaller than the sum of its proper divisors (116661924).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68406876 is a wasteful number, since it uses less digits than its factorization.
68406876 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27575 (or 27567 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The square root of 68406876 is about 8270.8449386988. The cubic root of 68406876 is about 408.9779739973.
The spelling of 68406876 in words is "sixty-eight million, four hundred six thousand, eight hundred seventy-six".
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