Base | Representation |
---|---|
bin | 10010101010011… |
… | …000111100111111 |
3 | 210211011020101200 |
4 | 102222120330333 |
5 | 1120123232033 |
6 | 51022510543 |
7 | 10521216144 |
oct | 2252307477 |
9 | 724136350 |
10 | 313102143 |
11 | 150813302 |
12 | 88a35453 |
13 | 4cb37653 |
14 | 2d8243cb |
15 | 1c74b013 |
hex | 12a98f3f |
313102143 has 6 divisors (see below), whose sum is σ = 452258664. Its totient is φ = 208734756.
The previous prime is 313102079. The next prime is 313102187. The reversal of 313102143 is 341201313.
It is not a de Polignac number, because 313102143 - 26 = 313102079 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313102343) 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 in 5 ways as a sum of consecutive naturals, for example, 17394555 + ... + 17394572.
It is an arithmetic number, because the mean of its divisors is an integer number (75376444).
Almost surely, 2313102143 is an apocalyptic number.
313102143 is a deficient number, since it is larger than the sum of its proper divisors (139156521).
313102143 is a wasteful number, since it uses less digits than its factorization.
313102143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34789133 (or 34789130 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 313102143 is about 17694.6925093374. The cubic root of 313102143 is about 679.0399825204.
Adding to 313102143 its reverse (341201313), we get a palindrome (654303456).
The spelling of 313102143 in words is "three hundred thirteen million, one hundred two thousand, one hundred forty-three".
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