21000986 is an even 8-digits composite number following 21000985
and preceding 21000987 . In scientific notation, it is written as 2.1000986 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 10482588 positive integers (up to 21000986) that are relatively prime to 21000986.
21000986 has 8 divisors, whose sum is 31555200
The reverse of 21000986 is 68900012
Previous prime number is 607
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million nine hundred eighty-six
Scientific notation
2.1000986 × 10^7
Engineering notation
2.1000986 × 10^6
Prime Factorization
2 × 607 × 17299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000986
Product of the distinct prime numbers
The prime factorization of 21000986 is 2 × 607 × 17299.
Since it has a total of 3 prime factors.
10 , 8 , 43 , 36 , 656 , 568 , 4944 , 3879 , 5 , 61448 , 436438 , 885425 , 2246004 , 7043164 , 40516434 , 57037305 , 862191923 , 319423105 , 4290606386 , 5750195859
n×2
42001972
n×3
63002958
n×4
84003944
n×5
105004930
n÷2
10500493
n÷3
7000328.6666667
n÷3
5250246.5
n÷5
4200197.2
n2
441041412972196
n3
9.2623045392493E+21
n4
1.9451752795651E+29
n5
4.0850598813693E+36
2 √n
4582.683275113
3 √n
275.89673550583
4 √n
67.695518870254
5 √n
29.137208190314
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000986 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001100011010
3
Ternary
1110111221221022
4
Quaternary
1100013030122
5
Quinary
20334012421
6
Senary
2030042442
8
Octal
120071432
10
Decimal
21000986
12
Duodecimal
7049422
16
Hexadecimal
140731a
20
Vigesimal
6b5296
36
Base36
ci4gq
md5
83efe4d435f3bfa3b2659760baad28ed
sha1
95d70248ee855ba13125ae71e1d9ce3295339464
sha256
7290f6886c88e01c8afd39ef018fb9644ef4ad6f77c0db51c08cd1573b0fa9f4
sha512
3f90cb72ad89854e5a333abc6acf160905a6579c707b838cb7281f7e2d5904556fa5313b21ae3415c7f1b018c1608c9a2567a8a3e616d73fad221493509da362
ripemd-160
60ea6f9eac7681b810d31449da7debe942be0573
Diameter
42001972
Circumference
131953086.67148
Area
1.3855724629223E+15
Volume
3.8797850527756E+22
Surface area
5.5422898516893E+15
Circumference
131953086.67148
Perimeter
84003944
Area
441041412972196
Diagonal
29699879.224407
Surface area
2646248477833176
Volume
9.2623045392493E+21
Space diagonal
36374774.761043
Perimeter
63002958
Area
1.9097653387745E+14
Altitude
18187387.380521
Surface area
1.9097653387745E+14
Volume
1.0915730581864E+21
Height
9899959.7414692