21002009 is an odd 8-digits composite number following 21002008
and preceding 21002010 . In scientific notation, it is written as 2.1002009 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 17826336 positive integers (up to 21002009) that are relatively prime to 21002009.
21002009 has 8 divisors, whose sum is 24236160
The reverse of 21002009 is 90020012
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million two thousand nine
Scientific notation
2.1002009 × 10^7
Engineering notation
2.1002009 × 10^6
Prime Factorization
7 × 103 × 29129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21002009
Product of the distinct prime numbers
The prime factorization of 21002009 is 7 × 103 × 29129.
Since it has a total of 3 prime factors.
6 , 3 , 21 , 78 , 443 , 227 , 1577 , 7433 , 4380 , 37671 , 128284 , 532717 , 1883178 , 5996290 , 65037389 , 587079 , 415000345 , 920225811 , 8670739903 , 4681406070
n×2
42004018
n×3
63006027
n×4
84008036
n×5
105010045
n÷2
10501004.5
n÷3
7000669.6666667
n÷3
5250502.25
n÷5
4200401.8
n2
441084382036081
n3
9.2636581612812E+21
n4
1.9455543207615E+29
n5
4.0860549354622E+36
2 √n
4582.7948895843
3 √n
275.90121526022
4 √n
67.6963432512
5 √n
29.137492051112
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21002008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21002009 can be divided by 8 positive divisors.
The sum of these divisors (counting 21002009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111011100011001
3
Ternary
1110112000100012
4
Quaternary
1100013130121
5
Quinary
20334031014
6
Senary
2030051305
8
Octal
120073431
10
Decimal
21002009
12
Duodecimal
7049b35
16
Hexadecimal
1407719
20
Vigesimal
6b5509
36
Base36
ci595
md5
c36c905684992d77b942478c9b638e44
sha1
d51d991222320377adcbac5d0a5eab04f1150a38
sha256
277fc40a777b2d8e285ec5c3ddcaedec913e2c1101217d7599a4e87f892a3389
sha512
c0d5dab0515baeb7e341ff1d80f479980bd17ddff69b15f8b1994087282ce76669a65d02d6f1b4473e440bf457a0f20cf9049b206b9c5a409eec98f422a4a014
ripemd-160
fd8cd900418ab81ce905fadba842a766e8742908
Diameter
42004018
Circumference
131959514.37005
Area
1.3857074542177E+15
Volume
3.8803520566464E+22
Surface area
5.542829816871E+15
Circumference
131959514.37005
Perimeter
84008036
Area
441084382036081
Diagonal
29701325.964882
Surface area
2646506292216486
Volume
9.2636581612812E+21
Space diagonal
36376546.649019
Perimeter
63006027
Area
1.909951400279E+14
Altitude
18188273.324509
Surface area
1.909951400279E+14
Volume
1.0917325840727E+21
Height
9900441.9882939