Base | Representation |
---|---|
bin | 111001100111… |
… | …0010101110110 |
3 | 2002211120212220 |
4 | 1303032111312 |
5 | 30213032202 |
6 | 2555223210 |
7 | 514512051 |
oct | 163162566 |
9 | 62746786 |
10 | 30205302 |
11 | 16060766 |
12 | a147b06 |
13 | 634757a |
14 | 4023a98 |
15 | 29b9abc |
hex | 1cce576 |
30205302 has 32 divisors (see below), whose sum is σ = 64392192. Its totient is φ = 9423744.
The previous prime is 30205297. The next prime is 30205303. The reversal of 30205302 is 20350203.
It is a super-2 number, since 2×302053022 = 1824720537822408, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30205303) 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, 4158 + ... + 8814.
It is an arithmetic number, because the mean of its divisors is an integer number (2012256).
Almost surely, 230205302 is an apocalyptic number.
30205302 is an abundant number, since it is smaller than the sum of its proper divisors (34186890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30205302 is a wasteful number, since it uses less digits than its factorization.
30205302 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4732.
The product of its (nonzero) digits is 180, while the sum is 15.
The square root of 30205302 is about 5495.9350432843. The cubic root of 30205302 is about 311.4304410091.
Adding to 30205302 its reverse (20350203), we get a palindrome (50555505).
The spelling of 30205302 in words is "thirty million, two hundred five thousand, three hundred two".
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