Base | Representation |
---|---|
bin | 111010110001… |
… | …0000000001111 |
3 | 2010222022112211 |
4 | 1311202000033 |
5 | 30341411002 |
6 | 3020211251 |
7 | 522611305 |
oct | 165420017 |
9 | 63868484 |
10 | 30810127 |
11 | 16434117 |
12 | a399b27 |
13 | 64c995a |
14 | 4140275 |
15 | 2a88dd7 |
hex | 1d6200f |
30810127 has 2 divisors, whose sum is σ = 30810128. Its totient is φ = 30810126.
The previous prime is 30810121. The next prime is 30810149. The reversal of 30810127 is 72101803.
It is an a-pointer prime, because the next prime (30810149) can be obtained adding 30810127 to its sum of digits (22).
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30810127 is a prime.
It is a super-2 number, since 2×308101272 = 1898527851512258, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30810098 and 30810107.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30810121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15405063 + 15405064.
It is an arithmetic number, because the mean of its divisors is an integer number (15405064).
Almost surely, 230810127 is an apocalyptic number.
30810127 is a deficient number, since it is larger than the sum of its proper divisors (1).
30810127 is an equidigital number, since it uses as much as digits as its factorization.
30810127 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 336, while the sum is 22.
The square root of 30810127 is about 5550.6870745882. The cubic root of 30810127 is about 313.4953928780.
The spelling of 30810127 in words is "thirty million, eight hundred ten thousand, one hundred twenty-seven".
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