Base | Representation |
---|---|
bin | 111001101100… |
… | …0000101011011 |
3 | 2002220121122000 |
4 | 1303120011123 |
5 | 30220321321 |
6 | 3000132043 |
7 | 515036313 |
oct | 163300533 |
9 | 62817560 |
10 | 30245211 |
11 | 16088747 |
12 | a167023 |
13 | 635c799 |
14 | 4034443 |
15 | 29c6826 |
hex | 1cd815b |
30245211 has 32 divisors (see below), whose sum is σ = 46464000. Its totient is φ = 19432224.
The previous prime is 30245191. The next prime is 30245233. The reversal of 30245211 is 11254203.
It is not a de Polignac number, because 30245211 - 26 = 30245147 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30245251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126430 + ... + 126668.
It is an arithmetic number, because the mean of its divisors is an integer number (1452000).
Almost surely, 230245211 is an apocalyptic number.
30245211 is a deficient number, since it is larger than the sum of its proper divisors (16218789).
30245211 is a wasteful number, since it uses less digits than its factorization.
30245211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 400 (or 394 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 30245211 is about 5499.5646191312. The cubic root of 30245211 is about 311.5675406433.
Adding to 30245211 its reverse (11254203), we get a palindrome (41499414).
The spelling of 30245211 in words is "thirty million, two hundred forty-five thousand, two hundred eleven".
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