21108542 is an even 8-digits composite number following 21108541
and preceding 21108543 . In scientific notation, it is written as 2.1108542 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 8350560 positive integers (up to 21108542) that are relatively prime to 21108542.
21108542 has 16 divisors, whose sum is 38969952
The reverse of 21108542 is 24580112
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred eight thousand five hundred forty-two
Scientific notation
2.1108542 × 10^7
Engineering notation
2.1108542 × 10^6
Prime Factorization
2 × 13 × 7 × 115981
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21108542
Product of the distinct prime numbers
The prime factorization of 21108542 is 2 × 13 × 7 × 115981.
Since it has a total of 4 prime factors.
8 , 5 , 81 , 24 , 787 , 38 , 8760 , 7532 , 79181 , 90918 , 48181 , 205780 , 9164526 , 9213238 , 90301263 , 31327664 , 838734741 , 892714605 , 4057208675 , 9963683285
n×2
42217084
n×3
63325626
n×4
84434168
n×5
105542710
n÷2
10554271
n÷3
7036180.6666667
n÷3
5277135.5
n÷5
4221708.4
n2
445570545365764
n3
9.4053445708161E+21
n4
1.9853311089754E+29
n5
4.1907445097715E+36
2 √n
4594.403334493
3 √n
276.36693301831
4 √n
67.782028108437
5 √n
29.166992326971
1 , 2 , 7 , 13 , 14 , 26 , 91 , 182 , 115981 , 231962 , 811867 , 1507753 , 1623734 , 3015506 , 10554271 , 21108542
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
-21108541
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 21108542 can be divided by 16 positive divisors.
The sum of these divisors (counting 21108542) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100001011100111110
3
Ternary
1110201102110212
4
Quaternary
1100201130332
5
Quinary
20400433132
6
Senary
2032232422
8
Octal
120413476
10
Decimal
21108542
12
Duodecimal
709b712
16
Hexadecimal
142173e
20
Vigesimal
6bib72
36
Base36
ckfge
md5
a9e3ea8f9a9d7d79246a6f3c79e790d5
sha1
d44bb0d020aae6e96b369a85aacdd7bc95543ef8
sha256
f6ea0ed7dacdcfaa2d3f7ff1b56c3d801d97cfb842416dc6f26770b25ab21589
sha512
0cd97cc89d6cca74aadcc38a0df306d49e6fa36d87363978ec9eb2940c418da3afc412a7669b5ad91c47da22690eff66c6a65c11a794026b88046a93a9570a80
ripemd-160
5ae84f6536cbfb214b2e9f7bfb1e55e160220491
Diameter
42217084
Circumference
132628880.95038
Area
1.3998011519771E+15
Volume
3.9397015210875E+22
Surface area
5.5992046079083E+15
Circumference
132628880.95038
Perimeter
84434168
Area
445570545365764
Diagonal
29851986.378322
Surface area
2673423272194584
Volume
9.4053445708161E+21
Space diagonal
36561067.217702
Perimeter
63325626
Area
1.9293770573242E+14
Altitude
18280533.608851
Surface area
1.9293770573242E+14
Volume
1.10843048757E+21
Height
9950662.1261074