Base | Representation |
---|---|
bin | 111001101100… |
… | …0001010011010 |
3 | 2002220122001211 |
4 | 1303120022122 |
5 | 30220324110 |
6 | 3000133334 |
7 | 515040250 |
oct | 163301232 |
9 | 62818054 |
10 | 30245530 |
11 | 16088a07 |
12 | a16724a |
13 | 635c983 |
14 | 40345d0 |
15 | 29c698a |
hex | 1cd829a |
30245530 has 32 divisors (see below), whose sum is σ = 65496960. Its totient is φ = 9823680.
The previous prime is 30245519. The next prime is 30245531. The reversal of 30245530 is 3554203.
It is not an unprimeable number, because it can be changed into a prime (30245531) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10041 + ... + 12700.
It is an arithmetic number, because the mean of its divisors is an integer number (2046780).
Almost surely, 230245530 is an apocalyptic number.
30245530 is an abundant number, since it is smaller than the sum of its proper divisors (35251430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30245530 is a wasteful number, since it uses less digits than its factorization.
30245530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22774.
The product of its (nonzero) digits is 1800, while the sum is 22.
The square root of 30245530 is about 5499.5936213506. The cubic root of 30245530 is about 311.5686360199.
Adding to 30245530 its reverse (3554203), we get a palindrome (33799733).
The spelling of 30245530 in words is "thirty million, two hundred forty-five thousand, five hundred thirty".
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