21109218 is an even 8-digits composite number following 21109217
and preceding 21109219 . In scientific notation, it is written as 2.1109218 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6495120 positive integers (up to 21109218) that are relatively prime to 21109218.
21109218 has 16 divisors, whose sum is 45466176
The reverse of 21109218 is 81290112
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million one hundred nine thousand two hundred eighteen
Scientific notation
2.1109218 × 10^7
Engineering notation
2.1109218 × 10^6
Prime Factorization
2 × 3 × 13 × 270631
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21109218
Product of the distinct prime numbers
The prime factorization of 21109218 is 2 × 3 × 13 × 270631.
Since it has a total of 4 prime factors.
10 , 8 , 50 , 90 , 209 , 296 , 2691 , 4845 , 10347 , 89322 , 74939 , 394678 , 8372453 , 7448814 , 67575770 , 20211723 , 462501 , 313085151 , 4142391534 , 225251866
n×2
42218436
n×3
63327654
n×4
84436872
n×5
105546090
n÷2
10554609
n÷3
7036406
n÷3
5277304.5
n÷5
4221843.6
n2
445599084571524
n3
9.4062482168207E+21
n4
1.9855854417098E+29
n5
4.1914155946679E+36
2 √n
4594.4769016723
3 √n
276.36988319921
4 √n
67.782570780934
5 √n
29.167179138871
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 270631 , 541262 , 811893 , 1623786 , 3518203 , 7036406 , 10554609 , 21109218
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21109217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21109218 can be divided by 16 positive divisors.
The sum of these divisors (counting 21109218) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100001100111100010
3
Ternary
1110201110101220
4
Quaternary
1100201213202
5
Quinary
20400443333
6
Senary
2032235510
8
Octal
120414742
10
Decimal
21109218
12
Duodecimal
709bb96
16
Hexadecimal
14219e2
20
Vigesimal
6bid0i
36
Base36
ckfz6
md5
31981746a8a7cd4e49d226e62d4d94dc
sha1
4516c06fa953967aac816617d1b40f3ff44432bf
sha256
7d13b28ade3a3f5e4e7e781272423a0303015f4849a37f5f7b150479019b7bd3
sha512
78e8c44a47a56b7ef3f50724d828d984ea0282741d3018df1696661bdf46d654a38098f3ec5f029b8efec0210d62d501bfadbc6c90e4fd28a8bc2855f7858f17
ripemd-160
5782115cfb1608a1ba510afb1ddf9ccd89639675
Diameter
42218436
Circumference
132633128.38365
Area
1.3998908105362E+15
Volume
3.9400800394408E+22
Surface area
5.5995632421449E+15
Circumference
132633128.38365
Perimeter
84436872
Area
445599084571524
Diagonal
29852942.38669
Surface area
2673594507429144
Volume
9.4062482168207E+21
Space diagonal
36562238.084047
Perimeter
63327654
Area
1.9295006357102E+14
Altitude
18281119.042024
Surface area
1.9295006357102E+14
Volume
1.108536983273E+21
Height
9950980.7955634