21568 is an even 5-digits composite number following 21567
and preceding 21569 . In scientific notation, it is written as 2.1568 × 10^4.
The sum of its digits is 22. It has a total of 7 prime factors and 14 positive divisors.
There are 10752 positive integers (up to 21568) that are relatively prime to 21568.
21568 has 14 divisors, whose sum is 42926
The reverse of 21568 is 86512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 5
Sum of Digits 22
Digital Root 4
Name
twenty-one thousand five hundred sixty-eight
Scientific notation
2.1568 × 10^4
Engineering notation
2.1568 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
674
Product of the distinct prime numbers
The prime factorization of 21568 is 2 × 2 × 2 × 2 × 2 × 2 × 337.
Since it has a total of 7 prime factors.
5 , 6 , 18 , 14 , 151 , 428 , 9967 , 2124 , 670 , 6553 , 816108 , 483985 , 5727694 , 6352434 , 74769227 , 78034086 , 659473573 , 252429802 , 2022721180 , 187565464
n×2
43136
n×3
64704
n×4
86272
n×5
107840
n÷2
10784
n÷3
7189.3333333333
n÷3
5392
n÷5
4313.6
n2
465178624
n3
10032972562432
n4
216391152226533376
n5
4.6671243712219E+21
2 √n
146.86047800549
3 √n
27.835773348744
4 √n
12.118600496983
5 √n
7.3580371290019
1 , 2 , 4 , 8 , 16 , 32 , 64 , 337 , 674 , 1348 , 2696 , 5392 , 10784 , 21568
14 divisors
τ
Total Divisors
14
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21567
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.071428571428571
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
14
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21568 can be divided by 14 positive divisors.
The sum of these divisors (counting 21568) is 1, the average is 0.071428571428571.
Base
System
Value
2
Binary
101010001000000
3
Ternary
1002120211
4
Quaternary
11101000
5
Quinary
1142233
6
Senary
243504
8
Octal
52100
10
Decimal
21568
12
Duodecimal
10594
16
Hexadecimal
5440
20
Vigesimal
2di8
36
Base36
gn4
md5
04dfa78991b5140d09df3164008cd690
sha1
6057ea5f955454141f9a127271460aa8fbb29183
sha256
4935c85011946f59d9113e9a76ca4d0be4178fcfefdff38a80e77bec82cfd7a7
sha512
d033d481b068c470e6d39d23499a5836b429e105e7d32b3f2edd5bb459662fd48eed171865db5dce5670a94e487cd83ff752ac1daeefa4ded4f8cb9cbc4681ba
ripemd-160
5df42f61af1a62964ad616cca207463d6025e2e1
Diameter
43136
Circumference
135515.74070525
Area
1461401747.7654
Volume
42026017194406
Surface area
5845606991.0616
Circumference
135515.74070525
Perimeter
86272
Area
465178624
Diagonal
30501.758113263
Surface area
2791071744
Volume
10032972562432
Space diagonal
37356.871817646
Perimeter
64704
Area
201428252.84074
Altitude
18678.435908823
Surface area
201428252.84074
Volume
1182397155725.7
Height
10167.252704421