Base | Representation |
---|---|
bin | 111001100111… |
… | …0111110100011 |
3 | 2002211201110101 |
4 | 1303032332203 |
5 | 30213123112 |
6 | 2555243231 |
7 | 514522462 |
oct | 163167643 |
9 | 62751411 |
10 | 30207907 |
11 | 16062714 |
12 | a149517 |
13 | 6348802 |
14 | 40249d9 |
15 | 29ba757 |
hex | 1ccefa3 |
30207907 has 2 divisors, whose sum is σ = 30207908. Its totient is φ = 30207906.
The previous prime is 30207889. The next prime is 30207913. The reversal of 30207907 is 70970203.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30207907 - 211 = 30205859 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30207977) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15103953 + 15103954.
It is an arithmetic number, because the mean of its divisors is an integer number (15103954).
Almost surely, 230207907 is an apocalyptic number.
30207907 is a deficient number, since it is larger than the sum of its proper divisors (1).
30207907 is an equidigital number, since it uses as much as digits as its factorization.
30207907 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2646, while the sum is 28.
The square root of 30207907 is about 5496.1720315143. The cubic root of 30207907 is about 311.4393936644.
The spelling of 30207907 in words is "thirty million, two hundred seven thousand, nine hundred seven".
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