Base | Representation |
---|---|
bin | 1000000111010… |
… | …01011011001001 |
3 | 11202002001120210 |
4 | 10003221123021 |
5 | 114411034334 |
6 | 10430511333 |
7 | 1454354100 |
oct | 403513311 |
9 | 152061523 |
10 | 68064969 |
11 | 3546a245 |
12 | 1a965549 |
13 | 11141b3b |
14 | 907b037 |
15 | 5e975e9 |
hex | 40e96c9 |
68064969 has 24 divisors (see below), whose sum is σ = 105883200. Its totient is φ = 38779104.
The previous prime is 68064967. The next prime is 68064979. The reversal of 68064969 is 96946086.
It is not a de Polignac number, because 68064969 - 21 = 68064967 is a prime.
It is a super-3 number, since 3×680649693 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (68064967) 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, 87667 + ... + 88439.
It is an arithmetic number, because the mean of its divisors is an integer number (4411800).
Almost surely, 268064969 is an apocalyptic number.
It is an amenable number.
68064969 is a deficient number, since it is larger than the sum of its proper divisors (37818231).
68064969 is a wasteful number, since it uses less digits than its factorization.
68064969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1389 (or 1382 counting only the distinct ones).
The product of its (nonzero) digits is 559872, while the sum is 48.
The square root of 68064969 is about 8250.1496350066. The cubic root of 68064969 is about 408.2954595258.
The spelling of 68064969 in words is "sixty-eight million, sixty-four thousand, nine hundred sixty-nine".
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