Base | Representation |
---|---|
bin | 11011111100001001… |
… | …111011000000011101 |
3 | 2212102202210021102011 |
4 | 123330021323000131 |
5 | 442420031410242 |
6 | 21440521431221 |
7 | 2111302013122 |
oct | 337411730035 |
9 | 85382707364 |
10 | 30000263197 |
11 | 117a5403853 |
12 | 599303b511 |
13 | 2aa1457b38 |
14 | 16484b6749 |
15 | ba8b7bd17 |
hex | 6fc27b01d |
30000263197 has 2 divisors, whose sum is σ = 30000263198. Its totient is φ = 30000263196.
The previous prime is 30000263191. The next prime is 30000263213. The reversal of 30000263197 is 79136200003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19761049476 + 10239213721 = 140574^2 + 101189^2 .
It is a cyclic number.
It is not a de Polignac number, because 30000263197 - 211 = 30000261149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30000263191) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000131598 + 15000131599.
It is an arithmetic number, because the mean of its divisors is an integer number (15000131599).
Almost surely, 230000263197 is an apocalyptic number.
It is an amenable number.
30000263197 is a deficient number, since it is larger than the sum of its proper divisors (1).
30000263197 is an equidigital number, since it uses as much as digits as its factorization.
30000263197 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6804, while the sum is 31.
The spelling of 30000263197 in words is "thirty billion, two hundred sixty-three thousand, one hundred ninety-seven".
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