Base | Representation |
---|---|
bin | 111111110010110… |
… | …0100011110000101 |
3 | 12112011211110122001 |
4 | 1333211210132011 |
5 | 13340440231031 |
6 | 552223305301 |
7 | 104021263354 |
oct | 17745443605 |
9 | 5464743561 |
10 | 2140555141 |
11 | 9a931883a |
12 | 4b8a4b231 |
13 | 28161a29a |
14 | 16440599b |
15 | c7dc8861 |
hex | 7f964785 |
2140555141 has 2 divisors, whose sum is σ = 2140555142. Its totient is φ = 2140555140.
The previous prime is 2140555139. The next prime is 2140555147. The reversal of 2140555141 is 1415550412.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1635878916 + 504676225 = 40446^2 + 22465^2 .
It is a cyclic number.
It is not a de Polignac number, because 2140555141 - 21 = 2140555139 is a prime.
Together with 2140555139, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2140555147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070277570 + 1070277571.
It is an arithmetic number, because the mean of its divisors is an integer number (1070277571).
Almost surely, 22140555141 is an apocalyptic number.
It is an amenable number.
2140555141 is a deficient number, since it is larger than the sum of its proper divisors (1).
2140555141 is an equidigital number, since it uses as much as digits as its factorization.
2140555141 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4000, while the sum is 28.
The square root of 2140555141 is about 46266.1338453949. The cubic root of 2140555141 is about 1288.7701639521.
The spelling of 2140555141 in words is "two billion, one hundred forty million, five hundred fifty-five thousand, one hundred forty-one".
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