Base | Representation |
---|---|
bin | 11010001000101011… |
… | …111001011000100011 |
3 | 2200102202111201220011 |
4 | 122020223321120203 |
5 | 424433112344022 |
6 | 20520355425351 |
7 | 2012266445434 |
oct | 321053713043 |
9 | 80382451804 |
10 | 28063012387 |
11 | 109a0925623 |
12 | 55322b5257 |
13 | 2852cb0b97 |
14 | 15030b348b |
15 | ae3a61977 |
hex | 688af9623 |
28063012387 has 2 divisors, whose sum is σ = 28063012388. Its totient is φ = 28063012386.
The previous prime is 28063012381. The next prime is 28063012499. The reversal of 28063012387 is 78321036082.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 28063012387 - 219 = 28062488099 is a prime.
It is not a weakly prime, because it can be changed into another prime (28063012381) 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, 14031506193 + 14031506194.
It is an arithmetic number, because the mean of its divisors is an integer number (14031506194).
Almost surely, 228063012387 is an apocalyptic number.
28063012387 is a deficient number, since it is larger than the sum of its proper divisors (1).
28063012387 is an equidigital number, since it uses as much as digits as its factorization.
28063012387 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96768, while the sum is 40.
The spelling of 28063012387 in words is "twenty-eight billion, sixty-three million, twelve thousand, three hundred eighty-seven".
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