Base | Representation |
---|---|
bin | 111111011111000… |
… | …0111100010111001 |
3 | 12111110101000221121 |
4 | 1332332013202321 |
5 | 13330313304144 |
6 | 551213505241 |
7 | 103534340446 |
oct | 17676074271 |
9 | 5443330847 |
10 | 2130213049 |
11 | 9a34a4658 |
12 | 4b54a2221 |
13 | 27c438ac3 |
14 | 162cb29cd |
15 | c7034384 |
hex | 7ef878b9 |
2130213049 has 2 divisors, whose sum is σ = 2130213050. Its totient is φ = 2130213048.
The previous prime is 2130213017. The next prime is 2130213053. The reversal of 2130213049 is 9403120312.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1091311225 + 1038901824 = 33035^2 + 32232^2 .
It is a cyclic number.
It is not a de Polignac number, because 2130213049 - 25 = 2130213017 is a prime.
It is not a weakly prime, because it can be changed into another prime (2130214049) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065106524 + 1065106525.
It is an arithmetic number, because the mean of its divisors is an integer number (1065106525).
Almost surely, 22130213049 is an apocalyptic number.
It is an amenable number.
2130213049 is a deficient number, since it is larger than the sum of its proper divisors (1).
2130213049 is an equidigital number, since it uses as much as digits as its factorization.
2130213049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 25.
The square root of 2130213049 is about 46154.2311061510. The cubic root of 2130213049 is about 1286.6912479382.
The spelling of 2130213049 in words is "two billion, one hundred thirty million, two hundred thirteen thousand, forty-nine".
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