Base | Representation |
---|---|
bin | 1111010000111… |
… | …1000110111100 |
3 | 11110110210211001 |
4 | 3310033012330 |
5 | 112342300040 |
6 | 10204140044 |
7 | 1405126603 |
oct | 364170674 |
9 | 143423731 |
10 | 64025020 |
11 | 3315aa44 |
12 | 19537624 |
13 | 10359037 |
14 | 8708a3a |
15 | 594a59a |
hex | 3d0f1bc |
64025020 has 12 divisors (see below), whose sum is σ = 134452584. Its totient is φ = 25610000.
The previous prime is 64024981. The next prime is 64025021. The reversal of 64025020 is 2052046.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64025021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600606 + ... + 1600645.
It is an arithmetic number, because the mean of its divisors is an integer number (11204382).
Almost surely, 264025020 is an apocalyptic number.
It is an amenable number.
64025020 is an abundant number, since it is smaller than the sum of its proper divisors (70427564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64025020 is a wasteful number, since it uses less digits than its factorization.
64025020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3201260 (or 3201258 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 19.
The square root of 64025020 is about 8001.5635971977. The cubic root of 64025020 is about 400.0521182089.
Adding to 64025020 its reverse (2052046), we get a palindrome (66077066).
The spelling of 64025020 in words is "sixty-four million, twenty-five thousand, twenty".
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