21008086 is an even 8-digits composite number following 21008085
and preceding 21008087 . In scientific notation, it is written as 2.1008086 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 32 positive divisors.
There are 9253440 positive integers (up to 21008086) that are relatively prime to 21008086.
21008086 has 32 divisors, whose sum is 35463168
The reverse of 21008086 is 68080012
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight thousand eighty-six
Scientific notation
2.1008086 × 10^7
Engineering notation
2.1008086 × 10^6
Prime Factorization
2 × 103 × 11 × 73 × 127
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21008086
Product of the distinct prime numbers
The prime factorization of 21008086 is 2 × 103 × 11 × 73 × 127.
Since it has a total of 5 prime factors.
8 , 2 , 61 , 34 , 83 , 785 , 6479 , 3616 , 20489 , 72113 , 65399 , 865518 , 9251905 , 104353 , 54154839 , 92795191 , 765789113 , 665120973 , 8845830603 , 9157363120
n×2
42016172
n×3
63024258
n×4
84032344
n×5
105040430
n÷2
10504043
n÷3
7002695.3333333
n÷3
5252021.5
n÷5
4201617.2
n2
441339677383396
n3
9.2717018976826E+21
n4
1.9478071083288E+29
n5
4.0919699243183E+36
2 √n
4583.4578649749
3 √n
275.92782366701
4 √n
67.701239759512
5 √n
29.139178061708
1 , 2 , 11 , 22 , 73 , 103 , 127 , 146 , 206 , 254 , 803 , 1133 , 1397 , 1606 , 2266 , 2794 , 7519 , 9271 , 13081 , 15038 , 18542 , 26162 , 82709 , 101981 , 143891 , 165418 , 203962 , 287782 , 954913 , 1909826 , 10504043 , 21008086
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21008085
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21008086 can be divided by 32 positive divisors.
The sum of these divisors (counting 21008086) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000001000111011010110
3
Ternary
1110112022200021
4
Quaternary
1100020323112
5
Quinary
20334224321
6
Senary
2030135354
8
Octal
120107326
10
Decimal
21008086
12
Duodecimal
705155a
16
Hexadecimal
1408ed6
20
Vigesimal
6b6046
36
Base36
ci9xy
md5
9b40a91d9960e6519dcc6e9437cdbb62
sha1
8fc2b9602d8c5265c654ee9b1364c96011dca8ec
sha256
b8ca6e0f2217839d8e12af33dd44484bd971809411cb6bce230ced805e2d635c
sha512
216cf12ad829c918b8f7c6d8296288b40462eaaa5e76cfe4e18acc0eb5d461f3a9fd48b18d3b4d1910fabd2807e967657b6275e072d0dbbba5377d8905e05ba8
ripemd-160
80231931b4a4ea17aa6c94c2dd890dde55068fb7
Diameter
42016172
Circumference
131997697.28717
Area
1.3865094882054E+15
Volume
3.8837214090712E+22
Surface area
5.5460379528215E+15
Circumference
131997697.28717
Perimeter
84032344
Area
441339677383396
Diagonal
29709920.1407
Surface area
2648038064300376
Volume
9.2717018976826E+21
Space diagonal
36387072.321776
Perimeter
63024258
Area
1.9110568615602E+14
Altitude
18193536.160888
Surface area
1.9110568615602E+14
Volume
1.0926805474986E+21
Height
9903306.7135668