Base | Representation |
---|---|
bin | 10010101111110101… |
… | …111111001001000101 |
3 | 1220221220012200200220 |
4 | 102233311333021011 |
5 | 312211242043440 |
6 | 13125252254553 |
7 | 1311561316326 |
oct | 225765771105 |
9 | 56856180626 |
10 | 20130034245 |
11 | 859a974742 |
12 | 3a99611459 |
13 | 1b8a605b89 |
14 | d8d69444d |
15 | 7cc3a48d0 |
hex | 4afd7f245 |
20130034245 has 16 divisors (see below), whose sum is σ = 32993618112. Its totient is φ = 10474163840.
The previous prime is 20130034241. The next prime is 20130034259. The reversal of 20130034245 is 54243003102.
It is not a de Polignac number, because 20130034245 - 22 = 20130034241 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20130034241) 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, 16365267 + ... + 16366496.
It is an arithmetic number, because the mean of its divisors is an integer number (2062101132).
Almost surely, 220130034245 is an apocalyptic number.
It is an amenable number.
20130034245 is a deficient number, since it is larger than the sum of its proper divisors (12863583867).
20130034245 is a wasteful number, since it uses less digits than its factorization.
20130034245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32731812.
The product of its (nonzero) digits is 2880, while the sum is 24.
Adding to 20130034245 its reverse (54243003102), we get a palindrome (74373037347).
The spelling of 20130034245 in words is "twenty billion, one hundred thirty million, thirty-four thousand, two hundred forty-five".
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