Base | Representation |
---|---|
bin | 11001110110000… |
… | …11110110010000 |
3 | 120002222000211100 |
4 | 30323003312100 |
5 | 421000340343 |
6 | 33302544400 |
7 | 5241562524 |
oct | 1473036620 |
9 | 502860740 |
10 | 216808848 |
11 | 101423773 |
12 | 60738100 |
13 | 35bc1079 |
14 | 20b19d84 |
15 | 140799d3 |
hex | cec3d90 |
216808848 has 120 divisors (see below), whose sum is σ = 645444800. Its totient is φ = 67744512.
The previous prime is 216808841. The next prime is 216808873. The reversal of 216808848 is 848808612.
It is a happy number.
216808848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (216808841) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297861 + ... + 298587.
Almost surely, 2216808848 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 216808848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322722400).
216808848 is an abundant number, since it is smaller than the sum of its proper divisors (428635952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
216808848 is a wasteful number, since it uses less digits than its factorization.
216808848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 869 (or 860 counting only the distinct ones).
The product of its (nonzero) digits is 196608, while the sum is 45.
The square root of 216808848 is about 14724.4303115604. The cubic root of 216808848 is about 600.7480004381.
The spelling of 216808848 in words is "two hundred sixteen million, eight hundred eight thousand, eight hundred forty-eight".
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