Base | Representation |
---|---|
bin | 111111110001111… |
… | …1111101000111101 |
3 | 12112011001111002202 |
4 | 1333203333220331 |
5 | 13340334022031 |
6 | 552210401245 |
7 | 104014623314 |
oct | 17743775075 |
9 | 5464044082 |
10 | 2140142141 |
11 | 9a9066515 |
12 | 4b8890225 |
13 | 2815042c7 |
14 | 16433927b |
15 | c7d462cb |
hex | 7f8ffa3d |
2140142141 has 2 divisors, whose sum is σ = 2140142142. Its totient is φ = 2140142140.
The previous prime is 2140142113. The next prime is 2140142167. The reversal of 2140142141 is 1412410412.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1265224900 + 874917241 = 35570^2 + 29579^2 .
It is a cyclic number.
It is not a de Polignac number, because 2140142141 - 210 = 2140141117 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2140142101) 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, 1070071070 + 1070071071.
It is an arithmetic number, because the mean of its divisors is an integer number (1070071071).
Almost surely, 22140142141 is an apocalyptic number.
It is an amenable number.
2140142141 is a deficient number, since it is larger than the sum of its proper divisors (1).
2140142141 is an equidigital number, since it uses as much as digits as its factorization.
2140142141 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 256, while the sum is 20.
The square root of 2140142141 is about 46261.6703222009. The cubic root of 2140142141 is about 1288.6872732566.
Adding to 2140142141 its reverse (1412410412), we get a palindrome (3552552553).
The spelling of 2140142141 in words is "two billion, one hundred forty million, one hundred forty-two thousand, one hundred forty-one".
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