Base | Representation |
---|---|
bin | 11100001101010110… |
… | …010101100101001011 |
3 | 2220011212120221002020 |
4 | 130031112111211023 |
5 | 444012403333233 |
6 | 21525304335523 |
7 | 2121403650366 |
oct | 341526254513 |
9 | 86155527066 |
10 | 30288730443 |
11 | 11933220534 |
12 | 5a537745a3 |
13 | 2b1914850a |
14 | 16749270dd |
15 | bc415d9b3 |
hex | 70d59594b |
30288730443 has 16 divisors (see below), whose sum is σ = 41522675712. Its totient is φ = 19627272000.
The previous prime is 30288730393. The next prime is 30288730447. The reversal of 30288730443 is 34403788203.
It is not a de Polignac number, because 30288730443 - 218 = 30288468299 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30288730395 and 30288730404.
It is not an unprimeable number, because it can be changed into a prime (30288730447) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421003 + ... + 487668.
It is an arithmetic number, because the mean of its divisors is an integer number (2595167232).
Almost surely, 230288730443 is an apocalyptic number.
30288730443 is a deficient number, since it is larger than the sum of its proper divisors (11233945269).
30288730443 is a wasteful number, since it uses less digits than its factorization.
30288730443 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 908986.
The product of its (nonzero) digits is 387072, while the sum is 42.
The spelling of 30288730443 in words is "thirty billion, two hundred eighty-eight million, seven hundred thirty thousand, four hundred forty-three".
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