21352581 is an odd 8-digits composite number following 21352580
and preceding 21352582 . In scientific notation, it is written as 2.1352581 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 14235048 positive integers (up to 21352581) that are relatively prime to 21352581.
21352581 has 6 divisors, whose sum is 30842630
The reverse of 21352581 is 18525312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million three hundred fifty-two thousand five hundred eighty-one
Scientific notation
2.1352581 × 10^7
Engineering notation
2.1352581 × 10^6
Prime Factorization
3 × 3 × 2372509
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7117527
Product of the distinct prime numbers
The prime factorization of 21352581 is 3 × 3 × 2372509.
Since it has a total of 3 prime factors.
2 , 1 , 39 , 7 , 341 , 946 , 4432 , 6101 , 87732 , 30533 , 189551 , 645916 , 8733356 , 1482438 , 44234499 , 70570302 , 294719681 , 533573581 , 6261250945 , 9896411402
n×2
42705162
n×3
64057743
n×4
85410324
n×5
106762905
n÷2
10676290.5
n÷3
7117527
n÷3
5338145.25
n÷5
4270516.2
n2
455932715361561
n3
9.7353402353077E+21
n4
2.0787464093697E+29
n5
4.4386601084525E+36
2 √n
4620.8853047874
3 √n
277.42789458452
4 √n
67.977093971333
5 √n
29.234123384851
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21352580
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21352581 can be divided by 6 positive divisors.
The sum of these divisors (counting 21352581) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001011101000010000101
3
Ternary
1111011211020100
4
Quaternary
1101131002011
5
Quinary
20431240311
6
Senary
2041354313
8
Octal
121350205
10
Decimal
21352581
12
Duodecimal
7198999
16
Hexadecimal
145d085
20
Vigesimal
6d9191
36
Base36
cpnr9
md5
537606fbd82cef32e57080aa1b4286b6
sha1
e33df1fe866a228725188b652c9f1c1afbb09dc4
sha256
cce0c1a21cc4e9a462ffb5bbc99a5d7a39a76f5402422b5c0297f5560f9bfefd
sha512
8a76a474eb90de8848c7ec316cbce5ff461ce18a3cc66803c7c2b28b16b55fa6a8a4ec2a590dd509c1d3e905924b5f69af383b1cd25d5681b5ded0f6aa20a8e9
ripemd-160
7100b841aa8c3dce0e893fecd5ca18830e66d591
Diameter
42705162
Circumference
134162223.20956
Area
1.4323548691111E+15
Volume
4.077929781792E+22
Surface area
5.7294194764445E+15
Circumference
134162223.20956
Perimeter
85410324
Area
455932715361561
Diagonal
30197109.64187
Surface area
2735596292169366
Volume
9.7353402353077E+21
Space diagonal
36983755.16473
Perimeter
64057743
Area
1.9742465695977E+14
Altitude
18491877.582365
Surface area
1.9742465695977E+14
Volume
1.1473208495907E+21
Height
10065703.213957