Base | Representation |
---|---|
bin | 111001110011… |
… | …0010000001101 |
3 | 2010000120020102 |
4 | 1303212100031 |
5 | 30224200440 |
6 | 3001300445 |
7 | 515400440 |
oct | 163462015 |
9 | 63016212 |
10 | 30303245 |
11 | 16118305 |
12 | a194725 |
13 | 638001b |
14 | 404b657 |
15 | 29d8b15 |
hex | 1ce640d |
30303245 has 8 divisors (see below), whose sum is σ = 41558784. Its totient is φ = 20779344.
The previous prime is 30303241. The next prime is 30303269. The reversal of 30303245 is 54230303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30303245 - 22 = 30303241 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30303241) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432869 + ... + 432938.
It is an arithmetic number, because the mean of its divisors is an integer number (5194848).
Almost surely, 230303245 is an apocalyptic number.
30303245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30303245 is a deficient number, since it is larger than the sum of its proper divisors (11255539).
30303245 is an equidigital number, since it uses as much as digits as its factorization.
30303245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 865819.
The product of its (nonzero) digits is 1080, while the sum is 20.
The square root of 30303245 is about 5504.8383264180. The cubic root of 30303245 is about 311.7666901674.
Adding to 30303245 its reverse (54230303), we get a palindrome (84533548).
The spelling of 30303245 in words is "thirty million, three hundred three thousand, two hundred forty-five".
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