Base | Representation |
---|---|
bin | 111010000000… |
… | …0110110101101 |
3 | 2010020002200222 |
4 | 1310000312231 |
5 | 30241142310 |
6 | 3003501125 |
7 | 516333215 |
oct | 164006655 |
9 | 63202628 |
10 | 30412205 |
11 | 1619215a |
12 | a2277a5 |
13 | 63ba7b5 |
14 | 4079245 |
15 | 2a0b055 |
hex | 1d00dad |
30412205 has 4 divisors (see below), whose sum is σ = 36494652. Its totient is φ = 24329760.
The previous prime is 30412181. The next prime is 30412229. The reversal of 30412205 is 50221403.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (30412181) and next prime (30412229).
It can be written as a sum of positive squares in 2 ways, for example, as 15217801 + 15194404 = 3901^2 + 3898^2 .
It is not a de Polignac number, because 30412205 - 216 = 30346669 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041216 + ... + 3041225.
It is an arithmetic number, because the mean of its divisors is an integer number (9123663).
Almost surely, 230412205 is an apocalyptic number.
It is an amenable number.
30412205 is a deficient number, since it is larger than the sum of its proper divisors (6082447).
30412205 is an equidigital number, since it uses as much as digits as its factorization.
30412205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6082446.
The product of its (nonzero) digits is 240, while the sum is 17.
The square root of 30412205 is about 5514.7261944724. The cubic root of 30412205 is about 312.1399116358.
Adding to 30412205 its reverse (50221403), we get a palindrome (80633608).
The spelling of 30412205 in words is "thirty million, four hundred twelve thousand, two hundred five".
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