21102009 is an odd 8-digits composite number following 21102008
and preceding 21102010 . In scientific notation, it is written as 2.1102009 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 14068004 positive integers (up to 21102009) that are relatively prime to 21102009.
21102009 has 4 divisors, whose sum is 28136016
The reverse of 21102009 is 90020112
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million one hundred two thousand nine
Scientific notation
2.1102009 × 10^7
Engineering notation
2.1102009 × 10^6
Prime Factorization
3 × 7034003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21102009
Product of the distinct prime numbers
The prime factorization of 21102009 is 3 × 7034003.
Since it has a total of 2 prime factors.
1 , 6 , 26 , 83 , 198 , 194 , 7938 , 6145 , 19421 , 1019 , 535586 , 83870 , 7419333 , 7103614 , 65155973 , 5009731 , 193829824 , 730675695 , 929980949 , 9108816226
n×2
42204018
n×3
63306027
n×4
84408036
n×5
105510045
n÷2
10551004.5
n÷3
7034003
n÷3
5275502.25
n÷5
4220401.8
n2
445294783836081
n3
9.396614536162E+21
n4
1.9828744451162E+29
n5
4.1842634386713E+36
2 √n
4593.6923057601
3 √n
276.3384186303
4 √n
67.776782940474
5 √n
29.165186692505
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
-21102008
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 21102009 can be divided by 4 positive divisors.
The sum of these divisors (counting 21102009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011111110110111001
3
Ternary
1110201002111220
4
Quaternary
1100133312321
5
Quinary
20400231014
6
Senary
2032142253
8
Octal
120376671
10
Decimal
21102009
12
Duodecimal
7097989
16
Hexadecimal
141fdb9
20
Vigesimal
6bhf09
36
Base36
ckaex
md5
f61df0163dc68d31db762bd758c1b575
sha1
77b1a4119ff43ce5edf8cd8a67efa664cc758435
sha256
df8a8f512c0cfd23dafd5674e22543dd0f2b0dbdedc7c70b7cad35354f6b5837
sha512
7a30960ac3d69a7dd6d0a23c368aabb35279605231ed9d40eebfbb02492a6121c8bea52c65f20f5564e4f215c4190a30ac381885458ac53c184d19d6272bf8bf
ripemd-160
5e45e1017b8e170d33622e3e11184e580e47d362
Diameter
42204018
Circumference
132587832.90077
Area
1.3989348215813E+15
Volume
3.9360446927229E+22
Surface area
5.5957392863251E+15
Circumference
132587832.90077
Perimeter
84408036
Area
445294783836081
Diagonal
29842747.321119
Surface area
2671768703016486
Volume
9.396614536162E+21
Space diagonal
36549751.729776
Perimeter
63306027
Area
1.9281829748737E+14
Altitude
18274875.864888
Surface area
1.9281829748737E+14
Volume
1.1074016431194E+21
Height
9947582.440373