Base | Representation |
---|---|
bin | 111010001111… |
… | …0100110001001 |
3 | 2010110021210211 |
4 | 1310132212021 |
5 | 30304042100 |
6 | 3010241121 |
7 | 520351324 |
oct | 164364611 |
9 | 63407724 |
10 | 30534025 |
11 | 16265735 |
12 | a2861a1 |
13 | 6431092 |
14 | 40ab7bb |
15 | 2a321ba |
hex | 1d1e989 |
30534025 has 12 divisors (see below), whose sum is σ = 37944000. Its totient is φ = 24374480.
The previous prime is 30534011. The next prime is 30534029. The reversal of 30534025 is 52043503.
It is not a de Polignac number, because 30534025 - 215 = 30501257 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30533987 and 30534005.
It is not an unprimeable number, because it can be changed into a prime (30534029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13956 + ... + 15994.
It is an arithmetic number, because the mean of its divisors is an integer number (3162000).
Almost surely, 230534025 is an apocalyptic number.
It is an amenable number.
30534025 is a deficient number, since it is larger than the sum of its proper divisors (7409975).
30534025 is a wasteful number, since it uses less digits than its factorization.
30534025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2648 (or 2643 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 22.
The square root of 30534025 is about 5525.7601287063. The cubic root of 30534025 is about 312.5561285847.
Adding to 30534025 its reverse (52043503), we get a palindrome (82577528).
The spelling of 30534025 in words is "thirty million, five hundred thirty-four thousand, twenty-five".
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