Base | Representation |
---|---|
bin | 1110001110101000000… |
… | …11000110111000110101 |
3 | 1201201220111200210012122 |
4 | 13013110003012320311 |
5 | 31002221023421020 |
6 | 1012331545325325 |
7 | 50215056663365 |
oct | 7072403067065 |
9 | 1651814623178 |
10 | 488888888885 |
11 | 17937803a241 |
12 | 7a8bba96845 |
13 | 371431bc407 |
14 | 1993b6ac9a5 |
15 | cab5447125 |
hex | 71d40c6e35 |
488888888885 has 8 divisors (see below), whose sum is σ = 589907920056. Its totient is φ = 388950275520.
The previous prime is 488888888837. The next prime is 488888888893. The reversal of 488888888885 is 588888888884.
It can be written as a sum of positive squares in 4 ways, for example, as 55774851889 + 433114036996 = 236167^2 + 658114^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 488888888885 - 212 = 488888884789 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 488888888885.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270103454 + ... + 270105263.
It is an arithmetic number, because the mean of its divisors is an integer number (73738490007).
Almost surely, 2488888888885 is an apocalyptic number.
It is an amenable number.
488888888885 is a deficient number, since it is larger than the sum of its proper divisors (101019031171).
488888888885 is a wasteful number, since it uses less digits than its factorization.
488888888885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 540208903.
The product of its digits is 21474836480, while the sum is 89.
Subtracting 488888888885 from its reverse (588888888884), we obtain a palindrome (99999999999).
The spelling of 488888888885 in words is "four hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-five".
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