Base | Representation |
---|---|
bin | 111001010011… |
… | …0000010010101 |
3 | 2002112012102111 |
4 | 1302212002111 |
5 | 30142241323 |
6 | 2551511021 |
7 | 513223540 |
oct | 162460225 |
9 | 62465374 |
10 | 30040213 |
11 | 15a58725 |
12 | a088471 |
13 | 62ba398 |
14 | 3dbd857 |
15 | 2985c0d |
hex | 1ca6095 |
30040213 has 8 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 25717920.
The previous prime is 30040211. The next prime is 30040217. The reversal of 30040213 is 31204003.
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 30040213 - 21 = 30040211 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30040193 and 30040202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30040211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5298 + ... + 9388.
It is an arithmetic number, because the mean of its divisors is an integer number (4296600).
Almost surely, 230040213 is an apocalyptic number.
It is an amenable number.
30040213 is a deficient number, since it is larger than the sum of its proper divisors (4332587).
30040213 is a wasteful number, since it uses less digits than its factorization.
30040213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5147.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 30040213 is about 5480.8952735844. The cubic root of 30040213 is about 310.8620232095.
Adding to 30040213 its reverse (31204003), we get a palindrome (61244216).
The spelling of 30040213 in words is "thirty million, forty thousand, two hundred thirteen".
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