Base | Representation |
---|---|
bin | 100110101001000… |
… | …001001010000000 |
3 | 1200011212101101000 |
4 | 212221001022000 |
5 | 2311430134343 |
6 | 144155012000 |
7 | 22031230056 |
oct | 4651011200 |
9 | 1604771330 |
10 | 648286848 |
11 | 302a39560 |
12 | 16113a000 |
13 | a44042b1 |
14 | 621561d6 |
15 | 3bda9ed3 |
hex | 26a41280 |
648286848 has 128 divisors (see below), whose sum is σ = 2087409600. Its totient is φ = 196439040.
The previous prime is 648286829. The next prime is 648286853. The reversal of 648286848 is 848682846.
648286848 is a `hidden beast` number, since 6 + 482 + 86 + 84 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 648286794 and 648286803.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29490 + ... + 46542.
Almost surely, 2648286848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 648286848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043704800).
648286848 is an abundant number, since it is smaller than the sum of its proper divisors (1439122752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
648286848 is a wasteful number, since it uses less digits than its factorization.
648286848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17087 (or 17069 counting only the distinct ones).
The product of its digits is 4718592, while the sum is 54.
The square root of 648286848 is about 25461.4777261651. The cubic root of 648286848 is about 865.4774105101.
It can be divided in two parts, 648 and 286848, that added together give a cube (287496 = 663).
The spelling of 648286848 in words is "six hundred forty-eight million, two hundred eighty-six thousand, eight hundred forty-eight".
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