Base | Representation |
---|---|
bin | 111010110101… |
… | …1001101101000 |
3 | 2011001020021220 |
4 | 1311223031220 |
5 | 30344112343 |
6 | 3021102040 |
7 | 523126263 |
oct | 165531550 |
9 | 64036256 |
10 | 30847848 |
11 | 1645a499 |
12 | a3b7920 |
13 | 6510b85 |
14 | 414dcda |
15 | 2a95183 |
hex | 1d6b368 |
30847848 has 32 divisors (see below), whose sum is σ = 77256960. Its totient is φ = 10264320.
The previous prime is 30847847. The next prime is 30847871. The reversal of 30847848 is 84874803.
It is a super-2 number, since 2×308478482 = 1903179452462208, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30847847) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23136 + ... + 24432.
It is an arithmetic number, because the mean of its divisors is an integer number (2414280).
Almost surely, 230847848 is an apocalyptic number.
It is an amenable number.
30847848 is an abundant number, since it is smaller than the sum of its proper divisors (46409112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30847848 is a wasteful number, since it uses less digits than its factorization.
30847848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2297 (or 2293 counting only the distinct ones).
The product of its (nonzero) digits is 172032, while the sum is 42.
The square root of 30847848 is about 5554.0839028592. The cubic root of 30847848 is about 313.6232787193.
The spelling of 30847848 in words is "thirty million, eight hundred forty-seven thousand, eight hundred forty-eight".
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