Base | Representation |
---|---|
bin | 1000001100111… |
… | …10100001110010 |
3 | 11210110202010220 |
4 | 10012132201302 |
5 | 120103304040 |
6 | 10454433510 |
7 | 1463563554 |
oct | 406364162 |
9 | 153422126 |
10 | 68806770 |
11 | 359265aa |
12 | 1b062896 |
13 | 11341686 |
14 | 91d14d4 |
15 | 60922d0 |
hex | 419e872 |
68806770 has 16 divisors (see below), whose sum is σ = 165136320. Its totient is φ = 18348464.
The previous prime is 68806757. The next prime is 68806799. The reversal of 68806770 is 7760886.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146750 + ... + 1146809.
It is an arithmetic number, because the mean of its divisors is an integer number (10321020).
Almost surely, 268806770 is an apocalyptic number.
68806770 is an abundant number, since it is smaller than the sum of its proper divisors (96329550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68806770 is a wasteful number, since it uses less digits than its factorization.
68806770 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2293569.
The product of its (nonzero) digits is 112896, while the sum is 42.
The square root of 68806770 is about 8294.9846292805. The cubic root of 68806770 is about 409.7733627471.
The spelling of 68806770 in words is "sixty-eight million, eight hundred six thousand, seven hundred seventy".
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