Base | Representation |
---|---|
bin | 1000001011001… |
… | …11000101101101 |
3 | 11210001012122122 |
4 | 10011213011231 |
5 | 120024022233 |
6 | 10445522325 |
7 | 1461626540 |
oct | 405470555 |
9 | 153035578 |
10 | 68579693 |
11 | 35790a36 |
12 | 1ab733a5 |
13 | 11292200 |
14 | 9172857 |
15 | 6049d98 |
hex | 416716d |
68579693 has 24 divisors (see below), whose sum is σ = 87840000. Its totient is φ = 52363584.
The previous prime is 68579689. The next prime is 68579701. The reversal of 68579693 is 39697586.
It is not a de Polignac number, because 68579693 - 22 = 68579689 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 (68579293) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33308 + ... + 35306.
It is an arithmetic number, because the mean of its divisors is an integer number (3660000).
Almost surely, 268579693 is an apocalyptic number.
It is an amenable number.
68579693 is a deficient number, since it is larger than the sum of its proper divisors (19260307).
68579693 is a wasteful number, since it uses less digits than its factorization.
68579693 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2061 (or 2048 counting only the distinct ones).
The product of its digits is 2449440, while the sum is 53.
The square root of 68579693 is about 8281.2857093570. The cubic root of 68579693 is about 409.3220861469.
The spelling of 68579693 in words is "sixty-eight million, five hundred seventy-nine thousand, six hundred ninety-three".
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