Base | Representation |
---|---|
bin | 101111111001… |
… | …1101001011110 |
3 | 1202020222121201 |
4 | 1133303221132 |
5 | 22412141410 |
6 | 2254150114 |
7 | 423322150 |
oct | 137635136 |
9 | 52228551 |
10 | 25115230 |
11 | 131a4498 |
12 | 84b233a |
13 | 52847aa |
14 | 349aad0 |
15 | 231183a |
hex | 17f3a5e |
25115230 has 32 divisors (see below), whose sum is σ = 53067456. Its totient is φ = 8377344.
The previous prime is 25115227. The next prime is 25115257. The reversal of 25115230 is 3251152.
It is a junction number, because it is equal to n+sod(n) for n = 25115198 and 25115207.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 2259 + ... + 7438.
It is an arithmetic number, because the mean of its divisors is an integer number (1658358).
Almost surely, 225115230 is an apocalyptic number.
25115230 is an abundant number, since it is smaller than the sum of its proper divisors (27952226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25115230 is a wasteful number, since it uses less digits than its factorization.
25115230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9748.
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 25115230 is about 5011.5097525596. The cubic root of 25115230 is about 292.8503314469.
Adding to 25115230 its reverse (3251152), we get a palindrome (28366382).
The spelling of 25115230 in words is "twenty-five million, one hundred fifteen thousand, two hundred thirty".
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