Base | Representation |
---|---|
bin | 111001011101… |
… | …0100010101111 |
3 | 2002200110122101 |
4 | 1302322202233 |
5 | 30202433312 |
6 | 2553355531 |
7 | 514023451 |
oct | 162724257 |
9 | 62613571 |
10 | 30124207 |
11 | 16005843 |
12 | a108ba7 |
13 | 6319699 |
14 | 40022d1 |
15 | 29a0a57 |
hex | 1cba8af |
30124207 has 2 divisors, whose sum is σ = 30124208. Its totient is φ = 30124206.
The previous prime is 30124189. The next prime is 30124229. The reversal of 30124207 is 70242103.
It is a weak prime.
It is an emirp because it is prime and its reverse (70242103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30124207 - 27 = 30124079 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30121207) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15062103 + 15062104.
It is an arithmetic number, because the mean of its divisors is an integer number (15062104).
Almost surely, 230124207 is an apocalyptic number.
30124207 is a deficient number, since it is larger than the sum of its proper divisors (1).
30124207 is an equidigital number, since it uses as much as digits as its factorization.
30124207 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 336, while the sum is 19.
The square root of 30124207 is about 5488.5523592292. The cubic root of 30124207 is about 311.1514823980.
The spelling of 30124207 in words is "thirty million, one hundred twenty-four thousand, two hundred seven".
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