Base | Representation |
---|---|
bin | 1000001001001… |
… | …00101110001010 |
3 | 11202112101202101 |
4 | 10010210232022 |
5 | 114441322400 |
6 | 10440024014 |
7 | 1456415152 |
oct | 404445612 |
9 | 152471671 |
10 | 68307850 |
11 | 35615776 |
12 | 1aa6200a |
13 | 111c8560 |
14 | 9101762 |
15 | 5ee456a |
hex | 4124b8a |
68307850 has 48 divisors (see below), whose sum is σ = 144053280. Its totient is φ = 23889600.
The previous prime is 68307821. The next prime is 68307851. The reversal of 68307850 is 5870386.
It is not an unprimeable number, because it can be changed into a prime (68307851) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9585 + ... + 15115.
It is an arithmetic number, because the mean of its divisors is an integer number (3001110).
Almost surely, 268307850 is an apocalyptic number.
68307850 is an abundant number, since it is smaller than the sum of its proper divisors (75745430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68307850 is a wasteful number, since it uses less digits than its factorization.
68307850 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5575 (or 5570 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 68307850 is about 8264.8563205902. The cubic root of 68307850 is about 408.7805327783.
The spelling of 68307850 in words is "sixty-eight million, three hundred seven thousand, eight hundred fifty".
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