Base | Representation |
---|---|
bin | 1000001010110… |
… | …11000010111101 |
3 | 11202221200222200 |
4 | 10011123002331 |
5 | 120020432430 |
6 | 10444502113 |
7 | 1461332661 |
oct | 405330275 |
9 | 152850880 |
10 | 68530365 |
11 | 35757972 |
12 | 1ab4a939 |
13 | 11275917 |
14 | 915c8a1 |
15 | 603a460 |
hex | 415b0bd |
68530365 has 12 divisors (see below), whose sum is σ = 118786044. Its totient is φ = 36549504.
The previous prime is 68530351. The next prime is 68530373. The reversal of 68530365 is 56303586.
68530365 is a `hidden beast` number, since 68 + 530 + 3 + 65 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 26811684 + 41718681 = 5178^2 + 6459^2 .
It is not a de Polignac number, because 68530365 - 27 = 68530237 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 761404 + ... + 761493.
It is an arithmetic number, because the mean of its divisors is an integer number (9898837).
Almost surely, 268530365 is an apocalyptic number.
It is an amenable number.
68530365 is a deficient number, since it is larger than the sum of its proper divisors (50255679).
68530365 is a wasteful number, since it uses less digits than its factorization.
68530365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1522908 (or 1522905 counting only the distinct ones).
The product of its (nonzero) digits is 64800, while the sum is 36.
The square root of 68530365 is about 8278.3068921127. The cubic root of 68530365 is about 409.2239235475.
The spelling of 68530365 in words is "sixty-eight million, five hundred thirty thousand, three hundred sixty-five".
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