Base | Representation |
---|---|
bin | 111001111010… |
… | …1011000010101 |
3 | 2010010201020020 |
4 | 1303311120111 |
5 | 30233141310 |
6 | 3002455353 |
7 | 516046203 |
oct | 163653025 |
9 | 63121206 |
10 | 30365205 |
11 | 1615a912 |
12 | a204559 |
13 | 63a22a0 |
14 | 4066073 |
15 | 29ec170 |
hex | 1cf5615 |
30365205 has 16 divisors (see below), whose sum is σ = 52321920. Its totient is φ = 14948928.
The previous prime is 30365147. The next prime is 30365207. The reversal of 30365205 is 50256303.
It is not a de Polignac number, because 30365205 - 28 = 30364949 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30365207) 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, 77665 + ... + 78054.
It is an arithmetic number, because the mean of its divisors is an integer number (3270120).
Almost surely, 230365205 is an apocalyptic number.
It is an amenable number.
30365205 is a deficient number, since it is larger than the sum of its proper divisors (21956715).
30365205 is a wasteful number, since it uses less digits than its factorization.
30365205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 155740.
The product of its (nonzero) digits is 2700, while the sum is 24.
The square root of 30365205 is about 5510.4632291669. The cubic root of 30365205 is about 311.9790317105.
The spelling of 30365205 in words is "thirty million, three hundred sixty-five thousand, two hundred five".
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