Base | Representation |
---|---|
bin | 1000001010100… |
… | …00010010110000 |
3 | 11202212110120101 |
4 | 10011100102300 |
5 | 120013030240 |
6 | 10443522144 |
7 | 1461060400 |
oct | 405202260 |
9 | 152773511 |
10 | 68486320 |
11 | 35727871 |
12 | 1ab29354 |
13 | 1125b866 |
14 | 914a800 |
15 | 602c39a |
hex | 41504b0 |
68486320 has 60 divisors (see below), whose sum is σ = 185238144. Its totient is φ = 23479680.
The previous prime is 68486309. The next prime is 68486321. The reversal of 68486320 is 2368486.
It is a self number, because there is not a number n which added to its sum of digits gives 68486320.
It is not an unprimeable number, because it can be changed into a prime (68486321) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4816 + ... + 12655.
Almost surely, 268486320 is an apocalyptic number.
It is an amenable number.
68486320 is an abundant number, since it is smaller than the sum of its proper divisors (116751824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68486320 is a wasteful number, since it uses less digits than its factorization.
68486320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17498 (or 17485 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 37.
The square root of 68486320 is about 8275.6461983340. The cubic root of 68486320 is about 409.1362342896.
The spelling of 68486320 in words is "sixty-eight million, four hundred eighty-six thousand, three hundred twenty".
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