21032581 is an odd 8-digits composite number following 21032580
and preceding 21032582 . In scientific notation, it is written as 2.1032581 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20954700 positive integers (up to 21032581) that are relatively prime to 21032581.
21032581 has 4 divisors, whose sum is 21110464
The reverse of 21032581 is 18523012
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million thirty-two thousand five hundred eighty-one
Scientific notation
2.1032581 × 10^7
Engineering notation
2.1032581 × 10^6
Prime Factorization
271 × 77611
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21032581
Product of the distinct prime numbers
The prime factorization of 21032581 is 271 × 77611.
Since it has a total of 2 prime factors.
4 , 3 , 18 , 2 , 256 , 604 , 1859 , 9255 , 713 , 72951 , 658292 , 821601 , 3652050 , 7065069 , 79214464 , 19302706 , 434268012 , 891844856 , 9261962145 , 7953961153
n×2
42065162
n×3
63097743
n×4
84130324
n×5
105162905
n÷2
10516290.5
n÷3
7010860.3333333
n÷3
5258145.25
n÷5
4206516.2
n2
442369463521561
n3
9.3041715734438E+21
n4
1.9569074225635E+29
n5
4.1158813874569E+36
2 √n
4586.1291957379
3 √n
276.03502408572
4 √n
67.720965702934
5 √n
29.145970032243
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21032580
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21032581 can be divided by 4 positive divisors.
The sum of these divisors (counting 21032581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110111010000101
3
Ternary
1110120120021111
4
Quaternary
1100032322011
5
Quinary
20341020311
6
Senary
2030445021
8
Octal
120167205
10
Decimal
21032581
12
Duodecimal
7063771
16
Hexadecimal
140ee85
20
Vigesimal
6b9191
36
Base36
cisud
md5
707eec8f4b47e03830709785dfd30c13
sha1
62c775d840bfc0a71ced99e90064cdd4403ac393
sha256
da684ece1330f7ce7115bc96ca60f4cd02236ae7b9a284ed51189f1b8aea8e75
sha512
ec922aba47a28fac2765eb6f2e307cfb2689f502cc503478d6be0f5a567753dc9bb5b0d84acb9f2e3a4640643a78f2dcae1af579672ba0254f2bd8df9a1a178e
ripemd-160
3a4cdcac07242b5411c6684b9e76d923a780d3b7
Diameter
42065162
Circumference
132151603.91126
Area
1.3897446567718E+15
Volume
3.8973222750493E+22
Surface area
5.5589786270872E+15
Circumference
132151603.91126
Perimeter
84130324
Area
442369463521561
Diagonal
29744561.301911
Surface area
2654216781129366
Volume
9.3041715734438E+21
Space diagonal
36429498.906308
Perimeter
63097743
Area
1.9155159663408E+14
Altitude
18214749.453154
Surface area
1.9155159663408E+14
Volume
1.0965071354842E+21
Height
9914853.7673036