Base | Representation |
---|---|
bin | 111010110011… |
… | …1000011110001 |
3 | 2011000100221201 |
4 | 1311213003301 |
5 | 30343041313 |
6 | 3020451201 |
7 | 523025545 |
oct | 165470361 |
9 | 64010851 |
10 | 30830833 |
11 | 16448730 |
12 | a3a9b01 |
13 | 65061c7 |
14 | 4147a25 |
15 | 2a900dd |
hex | 1d670f1 |
30830833 has 16 divisors (see below), whose sum is σ = 36237312. Its totient is φ = 25938000.
The previous prime is 30830831. The next prime is 30830837. The reversal of 30830833 is 33803803.
It is not a de Polignac number, because 30830833 - 21 = 30830831 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30830831) 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, 5878 + ... + 9808.
It is an arithmetic number, because the mean of its divisors is an integer number (2264832).
Almost surely, 230830833 is an apocalyptic number.
It is an amenable number.
30830833 is a deficient number, since it is larger than the sum of its proper divisors (5406479).
30830833 is a wasteful number, since it uses less digits than its factorization.
30830833 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3996.
The product of its (nonzero) digits is 5184, while the sum is 28.
The square root of 30830833 is about 5552.5519358219. The cubic root of 30830833 is about 313.5656055280.
The spelling of 30830833 in words is "thirty million, eight hundred thirty thousand, eight hundred thirty-three".
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