Base | Representation |
---|---|
bin | 1111011111111… |
… | …11011100001101 |
3 | 100001122202110112 |
4 | 13233333130031 |
5 | 231241134013 |
6 | 20522445405 |
7 | 3136106234 |
oct | 757773415 |
9 | 301582415 |
10 | 130021133 |
11 | 67436890 |
12 | 37663865 |
13 | 20c252a8 |
14 | 133a7b1b |
15 | b634ba8 |
hex | 7bff70d |
130021133 has 4 divisors (see below), whose sum is σ = 141841248. Its totient is φ = 118201020.
The previous prime is 130021109. The next prime is 130021153. The reversal of 130021133 is 331120031.
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 130021133 - 218 = 129758989 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130021153) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5910041 + ... + 5910062.
It is an arithmetic number, because the mean of its divisors is an integer number (35460312).
Almost surely, 2130021133 is an apocalyptic number.
It is an amenable number.
130021133 is a deficient number, since it is larger than the sum of its proper divisors (11820115).
130021133 is a wasteful number, since it uses less digits than its factorization.
130021133 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11820114.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 130021133 is about 11402.6809566873. The cubic root of 130021133 is about 506.6071505480.
Adding to 130021133 its reverse (331120031), we get a palindrome (461141164).
The spelling of 130021133 in words is "one hundred thirty million, twenty-one thousand, one hundred thirty-three".
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