Base | Representation |
---|---|
bin | 1111100011010… |
… | …0001101100000 |
3 | 11112201210122210 |
4 | 3320310031200 |
5 | 113144204233 |
6 | 10250002120 |
7 | 1421260002 |
oct | 370641540 |
9 | 145653583 |
10 | 65225568 |
11 | 338aaa31 |
12 | 19a16340 |
13 | 10689615 |
14 | 893c372 |
15 | 5ad6163 |
hex | 3e34360 |
65225568 has 24 divisors (see below), whose sum is σ = 171217368. Its totient is φ = 21741824.
The previous prime is 65225551. The next prime is 65225569. The reversal of 65225568 is 86552256.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65225569) 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, 339621 + ... + 339812.
It is an arithmetic number, because the mean of its divisors is an integer number (7134057).
Almost surely, 265225568 is an apocalyptic number.
It is an amenable number.
65225568 is an abundant number, since it is smaller than the sum of its proper divisors (105991800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65225568 is a wasteful number, since it uses less digits than its factorization.
65225568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 679446 (or 679438 counting only the distinct ones).
The product of its digits is 144000, while the sum is 39.
The square root of 65225568 is about 8076.2347662757. The cubic root of 65225568 is about 402.5371399444.
It can be divided in two parts, 6522 and 5568, that added together give a triangular number (12090 = T155).
The spelling of 65225568 in words is "sixty-five million, two hundred twenty-five thousand, five hundred sixty-eight".
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