Base | Representation |
---|---|
bin | 10010101110011100… |
… | …000101100000111101 |
3 | 1220220020212101001101 |
4 | 102232130011200331 |
5 | 312134223424024 |
6 | 13123051213101 |
7 | 1311154103311 |
oct | 225634054075 |
9 | 56806771041 |
10 | 20106467389 |
11 | 85886385a8 |
12 | 3a91747191 |
13 | 1b857740a8 |
14 | d8a4bbb41 |
15 | 7ca29bc44 |
hex | 4ae70583d |
20106467389 has 2 divisors, whose sum is σ = 20106467390. Its totient is φ = 20106467388.
The previous prime is 20106467383. The next prime is 20106467401. The reversal of 20106467389 is 98376460102.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13576211289 + 6530256100 = 116517^2 + 80810^2 .
It is a cyclic number.
It is not a de Polignac number, because 20106467389 - 211 = 20106465341 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20106467383) 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 as a sum of consecutive naturals, namely, 10053233694 + 10053233695.
It is an arithmetic number, because the mean of its divisors is an integer number (10053233695).
Almost surely, 220106467389 is an apocalyptic number.
It is an amenable number.
20106467389 is a deficient number, since it is larger than the sum of its proper divisors (1).
20106467389 is an equidigital number, since it uses as much as digits as its factorization.
20106467389 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 435456, while the sum is 46.
The spelling of 20106467389 in words is "twenty billion, one hundred six million, four hundred sixty-seven thousand, three hundred eighty-nine".
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