Base | Representation |
---|---|
bin | 1111111111011… |
… | …0100001110100 |
3 | 11200012111211121 |
4 | 3333312201310 |
5 | 114132220233 |
6 | 10353313324 |
7 | 1443041362 |
oct | 377664164 |
9 | 150174747 |
10 | 67070068 |
11 | 3494a80a |
12 | 1a565844 |
13 | 10b84040 |
14 | 8c9c632 |
15 | 5d4c92d |
hex | 3ff6874 |
67070068 has 24 divisors (see below), whose sum is σ = 127713992. Its totient is φ = 30633984.
The previous prime is 67070063. The next prime is 67070071. The reversal of 67070068 is 86007076.
It can be written as a sum of positive squares in 4 ways, for example, as 2396304 + 64673764 = 1548^2 + 8042^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67070063) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1605 + ... + 11692.
Almost surely, 267070068 is an apocalyptic number.
It is an amenable number.
67070068 is a deficient number, since it is larger than the sum of its proper divisors (60643924).
67070068 is a wasteful number, since it uses less digits than its factorization.
67070068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13411 (or 13409 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 34.
The square root of 67070068 is about 8189.6317377523. The cubic root of 67070068 is about 406.2963450717.
The spelling of 67070068 in words is "sixty-seven million, seventy thousand, sixty-eight".
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