Base | Representation |
---|---|
bin | 111010110101… |
… | …1010000001101 |
3 | 2011001020112000 |
4 | 1311223100031 |
5 | 30344114023 |
6 | 3021102513 |
7 | 523126620 |
oct | 165532015 |
9 | 64036460 |
10 | 30848013 |
11 | 1645a629 |
12 | a3b7a39 |
13 | 6510c81 |
14 | 414ddb7 |
15 | 2a95243 |
hex | 1d6b40d |
30848013 has 32 divisors (see below), whose sum is σ = 55307520. Its totient is φ = 16588800.
The previous prime is 30848003. The next prime is 30848017. The reversal of 30848013 is 31084803.
It is not a de Polignac number, because 30848013 - 24 = 30847997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30848017) 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 31 ways as a sum of consecutive naturals, for example, 1588 + ... + 8013.
It is an arithmetic number, because the mean of its divisors is an integer number (1728360).
Almost surely, 230848013 is an apocalyptic number.
It is an amenable number.
30848013 is a deficient number, since it is larger than the sum of its proper divisors (24459507).
30848013 is a wasteful number, since it uses less digits than its factorization.
30848013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9634 (or 9628 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 30848013 is about 5554.0987567741. The cubic root of 30848013 is about 313.6238378912.
The spelling of 30848013 in words is "thirty million, eight hundred forty-eight thousand, thirteen".
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