Base | Representation |
---|---|
bin | 111001111100… |
… | …1111001000101 |
3 | 2010011122120200 |
4 | 1303321321011 |
5 | 30234234220 |
6 | 3003121113 |
7 | 516154113 |
oct | 163717105 |
9 | 63148520 |
10 | 30383685 |
11 | 16172792 |
12 | a213199 |
13 | 63aa817 |
14 | 406cab3 |
15 | 2a02890 |
hex | 1cf9e45 |
30383685 has 24 divisors (see below), whose sum is σ = 52806624. Its totient is φ = 16161120.
The previous prime is 30383663. The next prime is 30383699. The reversal of 30383685 is 58638303.
It is not a de Polignac number, because 30383685 - 25 = 30383653 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22890 + ... + 24180.
It is an arithmetic number, because the mean of its divisors is an integer number (2200276).
Almost surely, 230383685 is an apocalyptic number.
It is an amenable number.
30383685 is a deficient number, since it is larger than the sum of its proper divisors (22422939).
30383685 is a wasteful number, since it uses less digits than its factorization.
30383685 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1825 (or 1822 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 36.
The square root of 30383685 is about 5512.1397841492. The cubic root of 30383685 is about 312.0423081187.
The spelling of 30383685 in words is "thirty million, three hundred eighty-three thousand, six hundred eighty-five".
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