Base | Representation |
---|---|
bin | 111001010010… |
… | …1100011000011 |
3 | 2002112002200100 |
4 | 1302211203003 |
5 | 30142210321 |
6 | 2551453443 |
7 | 513214650 |
oct | 162454303 |
9 | 62462610 |
10 | 30038211 |
11 | 15a57175 |
12 | a087283 |
13 | 62b94b8 |
14 | 3dbcc27 |
15 | 2985326 |
hex | 1ca58c3 |
30038211 has 24 divisors (see below), whose sum is σ = 49753184. Its totient is φ = 17107200.
The previous prime is 30038189. The next prime is 30038231. The reversal of 30038211 is 11283003.
It is not a de Polignac number, because 30038211 - 25 = 30038179 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30038231) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24411 + ... + 25611.
Almost surely, 230038211 is an apocalyptic number.
30038211 is a deficient number, since it is larger than the sum of its proper divisors (19714973).
30038211 is a wasteful number, since it uses less digits than its factorization.
30038211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1611 (or 1608 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 30038211 is about 5480.7126361450. The cubic root of 30038211 is about 310.8551173598.
The spelling of 30038211 in words is "thirty million, thirty-eight thousand, two hundred eleven".
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