Base | Representation |
---|---|
bin | 1111000011110101… |
… | …01010101100100010 |
3 | 202212110202201221102 |
4 | 13201322222230202 |
5 | 113024304021010 |
6 | 3414142154402 |
7 | 404234144231 |
oct | 74172525442 |
9 | 22773681842 |
10 | 8085220130 |
11 | 3479994609 |
12 | 1697882a02 |
13 | 9bb0b0530 |
14 | 569b2cb18 |
15 | 324c30ba5 |
hex | 1e1eaab22 |
8085220130 has 96 divisors (see below), whose sum is σ = 16580576880. Its totient is φ = 2821294080.
The previous prime is 8085220093. The next prime is 8085220141. The reversal of 8085220130 is 310225808.
It can be written as a sum of positive squares in 8 ways, for example, as 2637746881 + 5447473249 = 51359^2 + 73807^2 .
It is a junction number, because it is equal to n+sod(n) for n = 8085220093 and 8085220102.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 6119870 + ... + 6121190.
Almost surely, 28085220130 is an apocalyptic number.
8085220130 is an abundant number, since it is smaller than the sum of its proper divisors (8495356750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8085220130 is a wasteful number, since it uses less digits than its factorization.
8085220130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1476 (or 1453 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 29.
The square root of 8085220130 is about 89917.8521206996. The cubic root of 8085220130 is about 2007.0766087720.
Adding to 8085220130 its reverse (310225808), we get a palindrome (8395445938).
The spelling of 8085220130 in words is "eight billion, eighty-five million, two hundred twenty thousand, one hundred thirty".
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