21082009 is an odd 8-digits composite number following 21082008
and preceding 21082010 . In scientific notation, it is written as 2.1082009 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19429200 positive integers (up to 21082009) that are relatively prime to 21082009.
21082009 has 8 divisors, whose sum is 22740032
The reverse of 21082009 is 90028012
Previous prime number is 1051
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million eighty-two thousand nine
Scientific notation
2.1082009 × 10^7
Engineering notation
2.1082009 × 10^6
Prime Factorization
13 × 1051 × 1543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082009
Product of the distinct prime numbers
The prime factorization of 21082009 is 13 × 1051 × 1543.
Since it has a total of 3 prime factors.
1 , 7 , 53 , 66 , 635 , 751 , 1060 , 5900 , 35722 , 72883 , 928036 , 58898 , 6006669 , 4030198 , 15754450 , 678221 , 267721370 , 538228253 , 3417877625 , 342439467
n×2
42164018
n×3
63246027
n×4
84328036
n×5
105410045
n÷2
10541004.5
n÷3
7027336.3333333
n÷3
5270502.25
n÷5
4216401.8
n2
444451103476081
n3
9.3699221635427E+21
n4
1.9753678338111E+29
n5
4.1644722450715E+36
2 √n
4591.5148916235
3 √n
276.25108863026
4 √n
67.760717909593
5 √n
29.159656176463
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
-21082008
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 21082009 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011010111110011001
3
Ternary
1110200002002011
4
Quaternary
1100122332121
5
Quinary
20344111014
6
Senary
2031505521
8
Octal
120327631
10
Decimal
21082009
12
Duodecimal
70882a1
16
Hexadecimal
141af99
20
Vigesimal
6bf509
36
Base36
cjuzd
md5
a1ac83526b1cfa7be6b240c7d4564888
sha1
28629a1dc3af48f0286ead9defa09132819249cc
sha256
c09bd0befa254119f705f84aa767afeeb994a07701fd818611fc252d3aeb5a8a
sha512
d8c187c50787359706f6d04bf66019f33a5095ad5eab18760c2ef5de5269edf83489e1251fce65aec75ad7ab25be5714bc7eff00afd82869f0b8d037fedf4480
ripemd-160
345eca8fa950196da54773b3b6b85956d086f79b
Diameter
42164018
Circumference
132462169.19463
Area
1.3962843215603E+15
Volume
3.9248638178258E+22
Surface area
5.5851372862413E+15
Circumference
132462169.19463
Perimeter
84328036
Area
444451103476081
Diagonal
29814463.049872
Surface area
2666706620856486
Volume
9.3699221635427E+21
Space diagonal
36515110.713624
Perimeter
63246027
Area
1.9245297317516E+14
Altitude
18257555.356812
Surface area
1.9245297317516E+14
Volume
1.1042559168385E+21
Height
9938154.3499572