Base | Representation |
---|---|
bin | 1101010011101111… |
… | …00101101000001001 |
3 | 200102221100221220122 |
4 | 12221313211220021 |
5 | 104113042420331 |
6 | 3140551433025 |
7 | 342025360466 |
oct | 65167455011 |
9 | 20387327818 |
10 | 7144888841 |
11 | 3037115812 |
12 | 1474985775 |
13 | 89b33559c |
14 | 4bacb466d |
15 | 2bc3d917b |
hex | 1a9de5a09 |
7144888841 has 2 divisors, whose sum is σ = 7144888842. Its totient is φ = 7144888840.
The previous prime is 7144888837. The next prime is 7144888997. The reversal of 7144888841 is 1488884417.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 4626856441 + 2518032400 = 68021^2 + 50180^2 .
It is a cyclic number.
It is not a de Polignac number, because 7144888841 - 22 = 7144888837 is a prime.
It is not a weakly prime, because it can be changed into another prime (7144881841) 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, 3572444420 + 3572444421.
It is an arithmetic number, because the mean of its divisors is an integer number (3572444421).
Almost surely, 27144888841 is an apocalyptic number.
It is an amenable number.
7144888841 is a deficient number, since it is larger than the sum of its proper divisors (1).
7144888841 is an equidigital number, since it uses as much as digits as its factorization.
7144888841 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1835008, while the sum is 53.
The square root of 7144888841 is about 84527.4443065683. Note that the first 3 decimals coincide. The cubic root of 7144888841 is about 1926.0393636951.
The spelling of 7144888841 in words is "seven billion, one hundred forty-four million, eight hundred eighty-eight thousand, eight hundred forty-one".
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