Base | Representation |
---|---|
bin | 11100001111111000… |
… | …010110010111111111 |
3 | 2220021211111122202200 |
4 | 130033320112113333 |
5 | 444104241413043 |
6 | 21533422522543 |
7 | 2122430645334 |
oct | 341770262777 |
9 | 86254448680 |
10 | 30331201023 |
11 | 11955199292 |
12 | 5a65a36453 |
13 | 2b24b98736 |
14 | 167a42098b |
15 | bc7c4c7d3 |
hex | 70fe165ff |
30331201023 has 12 divisors (see below), whose sum is σ = 43853434248. Its totient is φ = 20201554800.
The previous prime is 30331201003. The next prime is 30331201037. The reversal of 30331201023 is 32010213303.
It is not a de Polignac number, because 30331201023 - 26 = 30331200959 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30331200987 and 30331201005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30331201003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593840 + ... + 1612757.
It is an arithmetic number, because the mean of its divisors is an integer number (3654452854).
Almost surely, 230331201023 is an apocalyptic number.
30331201023 is a deficient number, since it is larger than the sum of its proper divisors (13522233225).
30331201023 is a wasteful number, since it uses less digits than its factorization.
30331201023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3207654 (or 3207651 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 30331201023 its reverse (32010213303), we get a palindrome (62341414326).
The spelling of 30331201023 in words is "thirty billion, three hundred thirty-one million, two hundred one thousand, twenty-three".
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