Base | Representation |
---|---|
bin | 111010101111… |
… | …0000111111101 |
3 | 2010221111202022 |
4 | 1311132013331 |
5 | 30340403422 |
6 | 3020005525 |
7 | 522514055 |
oct | 165360775 |
9 | 63844668 |
10 | 30794237 |
11 | 16423191 |
12 | a3908a5 |
13 | 64c2656 |
14 | 4138565 |
15 | 2a84342 |
hex | 1d5e1fd |
30794237 has 4 divisors (see below), whose sum is σ = 30806496. Its totient is φ = 30781980.
The previous prime is 30794233. The next prime is 30794243. The reversal of 30794237 is 73249703.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 30794237 - 22 = 30794233 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30794197 and 30794206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30794233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839 + ... + 7892.
It is an arithmetic number, because the mean of its divisors is an integer number (7701624).
Almost surely, 230794237 is an apocalyptic number.
It is an amenable number.
30794237 is a deficient number, since it is larger than the sum of its proper divisors (12259).
30794237 is an equidigital number, since it uses as much as digits as its factorization.
30794237 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12258.
The product of its (nonzero) digits is 31752, while the sum is 35.
The square root of 30794237 is about 5549.2555356552. The cubic root of 30794237 is about 313.4414896228.
The spelling of 30794237 in words is "thirty million, seven hundred ninety-four thousand, two hundred thirty-seven".
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