Base | Representation |
---|---|
bin | 1000001101111… |
… | …10101010000111 |
3 | 11210201102200011 |
4 | 10012332222013 |
5 | 120122012000 |
6 | 10501331051 |
7 | 1464652342 |
oct | 406765207 |
9 | 153642604 |
10 | 68938375 |
11 | 35a06470 |
12 | 1b106a87 |
13 | 1138954c |
14 | 9227459 |
15 | 60bb2ba |
hex | 41bea87 |
68938375 has 32 divisors (see below), whose sum is σ = 94715712. Its totient is φ = 49680000.
The previous prime is 68938369. The next prime is 68938379. The reversal of 68938375 is 57383986.
It is a de Polignac number, because none of the positive numbers 2k-68938375 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68938379) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248737 + ... + 249013.
It is an arithmetic number, because the mean of its divisors is an integer number (2959866).
Almost surely, 268938375 is an apocalyptic number.
68938375 is a deficient number, since it is larger than the sum of its proper divisors (25777337).
68938375 is a wasteful number, since it uses less digits than its factorization.
68938375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 484 (or 474 counting only the distinct ones).
The product of its digits is 1088640, while the sum is 49.
The square root of 68938375 is about 8302.9136452212. The cubic root of 68938375 is about 410.0344508033.
The spelling of 68938375 in words is "sixty-eight million, nine hundred thirty-eight thousand, three hundred seventy-five".
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