Base | Representation |
---|---|
bin | 1100001101111… |
… | …1000001010101 |
3 | 10120102112010012 |
4 | 3003133001111 |
5 | 101104321031 |
6 | 5030210005 |
7 | 1161401513 |
oct | 303370125 |
9 | 116375105 |
10 | 51245141 |
11 | 26a21262 |
12 | 151b3905 |
13 | a80308c |
14 | 6b3d4b3 |
15 | 4773b2b |
hex | 30df055 |
51245141 has 2 divisors, whose sum is σ = 51245142. Its totient is φ = 51245140.
The previous prime is 51245107. The next prime is 51245149. The reversal of 51245141 is 14154215.
51245141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 50822641 + 422500 = 7129^2 + 650^2 .
It is a cyclic number.
It is not a de Polignac number, because 51245141 - 222 = 47050837 is a prime.
It is a super-2 number, since 2×512451412 = 5252128952219762, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (51245149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25622570 + 25622571.
It is an arithmetic number, because the mean of its divisors is an integer number (25622571).
Almost surely, 251245141 is an apocalyptic number.
It is an amenable number.
51245141 is a deficient number, since it is larger than the sum of its proper divisors (1).
51245141 is an equidigital number, since it uses as much as digits as its factorization.
51245141 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 800, while the sum is 23.
The square root of 51245141 is about 7158.5711563132. The cubic root of 51245141 is about 371.4362027384.
Adding to 51245141 its reverse (14154215), we get a palindrome (65399356).
The spelling of 51245141 in words is "fifty-one million, two hundred forty-five thousand, one hundred forty-one".
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