Base | Representation |
---|---|
bin | 101111101111… |
… | …0110110001110 |
3 | 1202002122202011 |
4 | 1133132312032 |
5 | 22401430110 |
6 | 2252251434 |
7 | 422515564 |
oct | 137366616 |
9 | 52078664 |
10 | 25030030 |
11 | 13146483 |
12 | 8470b7a |
13 | 5254a8c |
14 | 3477a34 |
15 | 22e648a |
hex | 17ded8e |
25030030 has 32 divisors (see below), whose sum is σ = 47923200. Its totient is φ = 9385632.
The previous prime is 25030013. The next prime is 25030043. The reversal of 25030030 is 3003052.
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, 18931 + ... + 20209.
It is an arithmetic number, because the mean of its divisors is an integer number (1497600).
Almost surely, 225030030 is an apocalyptic number.
25030030 is a deficient number, since it is larger than the sum of its proper divisors (22893170).
25030030 is a wasteful number, since it uses less digits than its factorization.
25030030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1408.
The product of its (nonzero) digits is 90, while the sum is 13.
The square root of 25030030 is about 5003.0020987403. The cubic root of 25030030 is about 292.5188046449.
Adding to 25030030 its reverse (3003052), we get a palindrome (28033082).
The spelling of 25030030 in words is "twenty-five million, thirty thousand, thirty".
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