Base | Representation |
---|---|
bin | 11100101110001000… |
… | …000101010000111111 |
3 | 2221121012100022112211 |
4 | 130232020011100333 |
5 | 1001124143013402 |
6 | 22100031041251 |
7 | 2141132062315 |
oct | 345610052077 |
9 | 87535308484 |
10 | 30838641727 |
11 | 12095677a73 |
12 | 5b87970227 |
13 | 2ba60574ca |
14 | 16c79920b5 |
15 | c075854d7 |
hex | 72e20543f |
30838641727 has 2 divisors, whose sum is σ = 30838641728. Its totient is φ = 30838641726.
The previous prime is 30838641671. The next prime is 30838641739. The reversal of 30838641727 is 72714683803.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30838641727 - 211 = 30838639679 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30838641797) 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, 15419320863 + 15419320864.
It is an arithmetic number, because the mean of its divisors is an integer number (15419320864).
Almost surely, 230838641727 is an apocalyptic number.
30838641727 is a deficient number, since it is larger than the sum of its proper divisors (1).
30838641727 is an equidigital number, since it uses as much as digits as its factorization.
30838641727 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1354752, while the sum is 49.
The spelling of 30838641727 in words is "thirty billion, eight hundred thirty-eight million, six hundred forty-one thousand, seven hundred twenty-seven".
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