Base | Representation |
---|---|
bin | 110001010100… |
… | …111011100011 |
3 | 220022221201001 |
4 | 301110323203 |
5 | 11302241122 |
6 | 1141052431 |
7 | 214624042 |
oct | 61247343 |
9 | 26287631 |
10 | 12930787 |
11 | 7332101 |
12 | 43b7117 |
13 | 28a986c |
14 | 1a08559 |
15 | 1206527 |
hex | c54ee3 |
12930787 has 2 divisors, whose sum is σ = 12930788. Its totient is φ = 12930786.
The previous prime is 12930739. The next prime is 12930793. The reversal of 12930787 is 78703921.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12930787 - 211 = 12928739 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (12930707) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6465393 + 6465394.
It is an arithmetic number, because the mean of its divisors is an integer number (6465394).
Almost surely, 212930787 is an apocalyptic number.
12930787 is a deficient number, since it is larger than the sum of its proper divisors (1).
12930787 is an equidigital number, since it uses as much as digits as its factorization.
12930787 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 21168, while the sum is 37.
The square root of 12930787 is about 3595.9403498946. The cubic root of 12930787 is about 234.7154364549.
The spelling of 12930787 in words is "twelve million, nine hundred thirty thousand, seven hundred eighty-seven".
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