Base | Representation |
---|---|
bin | 111111011110111… |
… | …0011101000111011 |
3 | 12111110012220002211 |
4 | 1332331303220323 |
5 | 13330303202030 |
6 | 551212035551 |
7 | 103533550651 |
oct | 17675635073 |
9 | 5443186084 |
10 | 2130131515 |
11 | 9a3449376 |
12 | 4b5462bb7 |
13 | 27c40a965 |
14 | 162c90dd1 |
15 | c701a12a |
hex | 7ef73a3b |
2130131515 has 8 divisors (see below), whose sum is σ = 2690692560. Its totient is φ = 1614415392.
The previous prime is 2130131449. The next prime is 2130131537. The reversal of 2130131515 is 5151310312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2130131515 - 213 = 2130123323 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11211124 + ... + 11211313.
It is an arithmetic number, because the mean of its divisors is an integer number (336336570).
Almost surely, 22130131515 is an apocalyptic number.
2130131515 is a deficient number, since it is larger than the sum of its proper divisors (560561045).
2130131515 is a wasteful number, since it uses less digits than its factorization.
2130131515 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22422461.
The product of its (nonzero) digits is 450, while the sum is 22.
The square root of 2130131515 is about 46153.3478200661. The cubic root of 2130131515 is about 1286.6748316737.
Adding to 2130131515 its reverse (5151310312), we get a palindrome (7281441827).
The spelling of 2130131515 in words is "two billion, one hundred thirty million, one hundred thirty-one thousand, five hundred fifteen".
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