Base | Representation |
---|---|
bin | 11100001110010101… |
… | …000000100001010001 |
3 | 2220020000111121011112 |
4 | 130032111000201101 |
5 | 444031110043444 |
6 | 21531052423105 |
7 | 2121663413651 |
oct | 341625004121 |
9 | 86200447145 |
10 | 30305159249 |
11 | 11941521762 |
12 | 5a59177a95 |
13 | 2b1c67b2c1 |
14 | 1676ba2361 |
15 | bc580669e |
hex | 70e540851 |
30305159249 has 4 divisors (see below), whose sum is σ = 30307712064. Its totient is φ = 30302606436.
The previous prime is 30305159243. The next prime is 30305159257. The reversal of 30305159249 is 94295150303.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30305159249 - 24 = 30305159233 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30305159243) 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 3 ways as a sum of consecutive naturals, for example, 1258517 + ... + 1282370.
It is an arithmetic number, because the mean of its divisors is an integer number (7576928016).
Almost surely, 230305159249 is an apocalyptic number.
It is an amenable number.
30305159249 is a deficient number, since it is larger than the sum of its proper divisors (2552815).
30305159249 is a wasteful number, since it uses less digits than its factorization.
30305159249 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2552814.
The product of its (nonzero) digits is 145800, while the sum is 41.
The spelling of 30305159249 in words is "thirty billion, three hundred five million, one hundred fifty-nine thousand, two hundred forty-nine".
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