Base | Representation |
---|---|
bin | 111001010110… |
… | …1001011000111 |
3 | 2002120200112020 |
4 | 1302231023013 |
5 | 30144210242 |
6 | 2552254223 |
7 | 513405012 |
oct | 162551307 |
9 | 62520466 |
10 | 30069447 |
11 | 15a78691 |
12 | a0a1373 |
13 | 62ca795 |
14 | 3dca379 |
15 | 298e6ec |
hex | 1cad2c7 |
30069447 has 16 divisors (see below), whose sum is σ = 42561792. Its totient is φ = 18817920.
The previous prime is 30069443. The next prime is 30069449. The reversal of 30069447 is 74496003.
It is not a de Polignac number, because 30069447 - 22 = 30069443 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30069443) 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, 36672 + ... + 37482.
It is an arithmetic number, because the mean of its divisors is an integer number (2660112).
Almost surely, 230069447 is an apocalyptic number.
30069447 is a deficient number, since it is larger than the sum of its proper divisors (12492345).
30069447 is a wasteful number, since it uses less digits than its factorization.
30069447 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1558.
The product of its (nonzero) digits is 18144, while the sum is 33.
The square root of 30069447 is about 5483.5615251404. The cubic root of 30069447 is about 310.9628302403.
The spelling of 30069447 in words is "thirty million, sixty-nine thousand, four hundred forty-seven".
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