Base | Representation |
---|---|
bin | 11100010110100101… |
… | …111010011100000111 |
3 | 2220120200101201012200 |
4 | 130112211322130013 |
5 | 444322103333034 |
6 | 21552524245543 |
7 | 2125266050145 |
oct | 342645723407 |
9 | 86520351180 |
10 | 30443808519 |
11 | 11a02810a33 |
12 | 5a976a08b3 |
13 | 2b423048a7 |
14 | 168b374595 |
15 | bd2a92a99 |
hex | 71697a707 |
30443808519 has 12 divisors (see below), whose sum is σ = 43976238696. Its totient is φ = 20295019152.
The previous prime is 30443808517. The next prime is 30443808533. The reversal of 30443808519 is 91580834403.
It is not a de Polignac number, because 30443808519 - 21 = 30443808517 is a prime.
It is a super-2 number, since 2×304438085192 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30443808511) 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 in 11 ways as a sum of consecutive naturals, for example, 215829 + ... + 327825.
It is an arithmetic number, because the mean of its divisors is an integer number (3664686558).
Almost surely, 230443808519 is an apocalyptic number.
30443808519 is a deficient number, since it is larger than the sum of its proper divisors (13532430177).
30443808519 is a wasteful number, since it uses less digits than its factorization.
30443808519 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 142206 (or 142203 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 45.
The spelling of 30443808519 in words is "thirty billion, four hundred forty-three million, eight hundred eight thousand, five hundred nineteen".
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