Base | Representation |
---|---|
bin | 1000001011011… |
… | …01111011000000 |
3 | 11210002122001012 |
4 | 10011231323000 |
5 | 120030421210 |
6 | 10450300052 |
7 | 1462104251 |
oct | 405557300 |
9 | 153078035 |
10 | 68607680 |
11 | 357aaa69 |
12 | 1ab87628 |
13 | 112a1b7b |
14 | 917cb28 |
15 | 6053305 |
hex | 416dec0 |
68607680 has 28 divisors (see below), whose sum is σ = 163372800. Its totient is φ = 27442944.
The previous prime is 68607673. The next prime is 68607701. The reversal of 68607680 is 8670686.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106880 + ... + 107519.
Almost surely, 268607680 is an apocalyptic number.
It is an amenable number.
68607680 is an abundant number, since it is smaller than the sum of its proper divisors (94765120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68607680 is a wasteful number, since it uses less digits than its factorization.
68607680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 214416 (or 214406 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 41.
The square root of 68607680 is about 8282.9753108409. The cubic root of 68607680 is about 409.3777592806.
The spelling of 68607680 in words is "sixty-eight million, six hundred seven thousand, six hundred eighty".
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