Base | Representation |
---|---|
bin | 110000000101… |
… | …1000110000100 |
3 | 1202102212100200 |
4 | 1200023012010 |
5 | 22423230033 |
6 | 2300210500 |
7 | 424202145 |
oct | 140130604 |
9 | 52385320 |
10 | 25211268 |
11 | 1325a665 |
12 | 8539a30 |
13 | 52b9414 |
14 | 34c3acc |
15 | 2330013 |
hex | 180b184 |
25211268 has 36 divisors (see below), whose sum is σ = 63880908. Its totient is φ = 8383680.
The previous prime is 25211267. The next prime is 25211273. The reversal of 25211268 is 86211252.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 3755844 + 21455424 = 1938^2 + 4632^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (25211261) 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, 29130 + ... + 29982.
Almost surely, 225211268 is an apocalyptic number.
It is an amenable number.
25211268 is an abundant number, since it is smaller than the sum of its proper divisors (38669640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25211268 is a wasteful number, since it uses less digits than its factorization.
25211268 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1684 (or 1679 counting only the distinct ones).
The product of its digits is 1920, while the sum is 27.
The square root of 25211268 is about 5021.0823534374. The cubic root of 25211268 is about 293.2231329620.
The spelling of 25211268 in words is "twenty-five million, two hundred eleven thousand, two hundred sixty-eight".
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