Base | Representation |
---|---|
bin | 1111010101001… |
… | …1011101111010 |
3 | 11111000000220100 |
4 | 3311103131322 |
5 | 112430230033 |
6 | 10214140230 |
7 | 1410404121 |
oct | 365233572 |
9 | 144000810 |
10 | 64305018 |
11 | 33331348 |
12 | 19651676 |
13 | 1042660b |
14 | 877cab8 |
15 | 59a3513 |
hex | 3d5377a |
64305018 has 24 divisors (see below), whose sum is σ = 140396256. Its totient is φ = 21270600.
The previous prime is 64305013. The next prime is 64305019. The reversal of 64305018 is 81050346.
64305018 is a `hidden beast` number, since 643 + 0 + 5 + 0 + 18 = 666.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 64304982 and 64305000.
It is not an unprimeable number, because it can be changed into a prime (64305013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11278 + ... + 15993.
It is an arithmetic number, because the mean of its divisors is an integer number (5849844).
Almost surely, 264305018 is an apocalyptic number.
64305018 is an abundant number, since it is smaller than the sum of its proper divisors (76091238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64305018 is a wasteful number, since it uses less digits than its factorization.
64305018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27410 (or 27407 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 64305018 is about 8019.0409651030. The cubic root of 64305018 is about 400.6344473261.
The spelling of 64305018 in words is "sixty-four million, three hundred five thousand, eighteen".
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