Base | Representation |
---|---|
bin | 111111010001100… |
… | …0110010101100101 |
3 | 12110222001012010100 |
4 | 1332203012111211 |
5 | 13322010131323 |
6 | 550402014313 |
7 | 103420211001 |
oct | 17643062545 |
9 | 5428035110 |
10 | 2123130213 |
11 | 99a4a7176 |
12 | 4b3047399 |
13 | 27ab28c89 |
14 | 161d8b701 |
15 | c65d5943 |
hex | 7e8c6565 |
2123130213 has 12 divisors (see below), whose sum is σ = 3067515360. Its totient is φ = 1415063976.
The previous prime is 2123130209. The next prime is 2123130227. The reversal of 2123130213 is 3120313212.
It is not a de Polignac number, because 2123130213 - 22 = 2123130209 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2123130283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11008 + ... + 66086.
It is an arithmetic number, because the mean of its divisors is an integer number (255626280).
Almost surely, 22123130213 is an apocalyptic number.
It is an amenable number.
2123130213 is a deficient number, since it is larger than the sum of its proper divisors (944385147).
2123130213 is a wasteful number, since it uses less digits than its factorization.
2123130213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 59368 (or 59365 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 2123130213 is about 46077.4371357609. The cubic root of 2123130213 is about 1285.2636063335.
Adding to 2123130213 its reverse (3120313212), we get a palindrome (5243443425).
The spelling of 2123130213 in words is "two billion, one hundred twenty-three million, one hundred thirty thousand, two hundred thirteen".
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