Base | Representation |
---|---|
bin | 1011111111011110… |
… | …01000101100111111 |
3 | 121121200021211001212 |
4 | 11333233020230333 |
5 | 101141113431033 |
6 | 2542501155035 |
7 | 315353232116 |
oct | 57757105477 |
9 | 17550254055 |
10 | 6438030143 |
11 | 2804111376 |
12 | 12b80bba7b |
13 | 7b7a643bc |
14 | 451072c7d |
15 | 27a30e748 |
hex | 17fbc8b3f |
6438030143 has 2 divisors, whose sum is σ = 6438030144. Its totient is φ = 6438030142.
The previous prime is 6438030037. The next prime is 6438030149. The reversal of 6438030143 is 3410308346.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 6438030143 - 28 = 6438029887 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (6438030149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219015071 + 3219015072.
It is an arithmetic number, because the mean of its divisors is an integer number (3219015072).
Almost surely, 26438030143 is an apocalyptic number.
6438030143 is a deficient number, since it is larger than the sum of its proper divisors (1).
6438030143 is an equidigital number, since it uses as much as digits as its factorization.
6438030143 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20736, while the sum is 32.
The square root of 6438030143 is about 80237.3363403846. The cubic root of 6438030143 is about 1860.3057792073.
Adding to 6438030143 its reverse (3410308346), we get a palindrome (9848338489).
The spelling of 6438030143 in words is "six billion, four hundred thirty-eight million, thirty thousand, one hundred forty-three".
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