Base | Representation |
---|---|
bin | 111001010100… |
… | …0011110100001 |
3 | 2002112201010201 |
4 | 1302220132201 |
5 | 30143101314 |
6 | 2552025201 |
7 | 513264640 |
oct | 162503641 |
9 | 62481121 |
10 | 30050209 |
11 | 15a65192 |
12 | a092201 |
13 | 62c1ab7 |
14 | 3dc3357 |
15 | 2988b74 |
hex | 1ca87a1 |
30050209 has 4 divisors (see below), whose sum is σ = 34343104. Its totient is φ = 25757316.
The previous prime is 30050197. The next prime is 30050219. The reversal of 30050209 is 90205003.
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.
It is a cyclic number.
It is not a de Polignac number, because 30050209 - 217 = 29919137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30050219) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146437 + ... + 2146450.
It is an arithmetic number, because the mean of its divisors is an integer number (8585776).
Almost surely, 230050209 is an apocalyptic number.
It is an amenable number.
30050209 is a deficient number, since it is larger than the sum of its proper divisors (4292895).
30050209 is an equidigital number, since it uses as much as digits as its factorization.
30050209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4292894.
The product of its (nonzero) digits is 270, while the sum is 19.
The square root of 30050209 is about 5481.8070925562. The cubic root of 30050209 is about 310.8964995761.
The spelling of 30050209 in words is "thirty million, fifty thousand, two hundred nine".
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