21092009 is an odd 8-digits composite number following 21092008
and preceding 21092010 . In scientific notation, it is written as 2.1092009 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20997204 positive integers (up to 21092009) that are relatively prime to 21092009.
21092009 has 4 divisors, whose sum is 21186816
The reverse of 21092009 is 90029012
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million ninety-two thousand nine
Scientific notation
2.1092009 × 10^7
Engineering notation
2.1092009 × 10^6
Prime Factorization
223 × 94583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21092009
Product of the distinct prime numbers
The prime factorization of 21092009 is 223 × 94583.
Since it has a total of 2 prime factors.
6 , 8 , 9 , 29 , 993 , 671 , 38 , 6499 , 49988 , 43583 , 821939 , 185616 , 6054302 , 8908381 , 32131421 , 66683315 , 31963321 , 599487030 , 4282798058 , 9230112862
n×2
42184018
n×3
63276027
n×4
84368036
n×5
105460045
n÷2
10546004.5
n÷3
7030669.6666667
n÷3
5273002.25
n÷5
4218401.8
n2
444872843656081
n3
9.3832620222497E+21
n4
1.9791184702265E+29
n5
4.1743584586083E+36
2 √n
4592.6037277344
3 √n
276.294760531
4 √n
67.768751853154
5 √n
29.162421958902
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
-21092008
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 21092009 can be divided by 4 positive divisors.
The sum of these divisors (counting 21092009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101011010101001
3
Ternary
1110200120210112
4
Quaternary
1100131122221
5
Quinary
20344421014
6
Senary
2032024105
8
Octal
120353251
10
Decimal
21092009
12
Duodecimal
7092035
16
Hexadecimal
141d6a9
20
Vigesimal
6bga09
36
Base36
ck2p5
md5
6f4c3a68e2c09ba0415405c1eba5d8a5
sha1
567100ed0fbc142ae4f45e45bd3d03a415fd7003
sha256
b3fa71a60a180014d1fcb6f5059aa986d1ca06f3b62eb6ec408cae73dc05d06b
sha512
ed26d962d40e7784cbf09738ae60b2b7ddf2937e5f24f9d3b159e918834ddd2a57cdd6264020c20ec070b4034f536460d959f9357fe3121732d2335d0ddd0cab
ripemd-160
8c18afd1a80d8b4548d036887ae9481a14c959d0
Diameter
42184018
Circumference
132525001.0477
Area
1.3976092574115E+15
Volume
3.9304516047743E+22
Surface area
5.5904370296462E+15
Circumference
132525001.0477
Perimeter
84368036
Area
444872843656081
Diagonal
29828605.185495
Surface area
2669237061936486
Volume
9.3832620222497E+21
Space diagonal
36532431.2217
Perimeter
63276027
Area
1.9263559202999E+14
Altitude
18266215.61085
Surface area
1.9263559202999E+14
Volume
1.1058280342638E+21
Height
9942868.3951651