20689021 is an odd 8-digits composite number following 20689020
and preceding 20689022 . In scientific notation, it is written as 2.0689021 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20581632 positive integers (up to 20689021) that are relatively prime to 20689021.
20689021 has 4 divisors, whose sum is 20796412
The reverse of 20689021 is 12098602
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-nine thousand twenty-one
Scientific notation
2.0689021 × 10^7
Engineering notation
2.0689021 × 10^6
Prime Factorization
193 × 107197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20689021
Product of the distinct prime numbers
The prime factorization of 20689021 is 193 × 107197.
Since it has a total of 2 prime factors.
2 , 4 , 35 , 59 , 294 , 632 , 1430 , 2426 , 32212 , 69958 , 952199 , 650206 , 3296544 , 5133103 , 53551204 , 31223902 , 176013349 , 675648363 , 9550118683 , 2829195946
n×2
41378042
n×3
62067063
n×4
82756084
n×5
103445105
n÷2
10344510.5
n÷3
6896340.3333333
n÷3
5172255.25
n÷5
4137804.2
n2
428035589938441
n3
8.8556373089838E+21
n4
1.8321446625395E+29
n5
3.7905279398317E+36
2 √n
4548.5185500336
3 √n
274.52378629162
4 √n
67.442705684408
5 √n
29.050123837903
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
-20689020
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 20689021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20689021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111011000001111101
3
Ternary
1102221010000001
4
Quaternary
1032323001331
5
Quinary
20244022041
6
Senary
2015234301
8
Octal
116730175
10
Decimal
20689021
12
Duodecimal
6b18991
16
Hexadecimal
13bb07d
20
Vigesimal
6962b1
36
Base36
cbfr1
md5
d7f89727124c7e5057a0c6488d6da927
sha1
e4bf10e96fe4c1b795bbf0dec09b997887dff55e
sha256
856ddb4a620290c4d4beb74a4a2ba57024d4addccb3cc261df7a3937fb77a75b
sha512
1006c3f085a4389439fb927ffc7cd61d30b87ea2a43c36983c1be194640aa8d910f3f806bdae051277065470105c890216562cb826d2a04982fc2ca699badf09
ripemd-160
3763d313310d4e18eb927c947b62da72b3cbb8c8
Diameter
41378042
Circumference
129992952.76713
Area
1.3447134648256E+15
Volume
3.7094406817012E+22
Surface area
5.3788538593023E+15
Circumference
129992952.76713
Perimeter
82756084
Area
428035589938441
Diagonal
29258694.090422
Surface area
2568213539630646
Volume
8.8556373089838E+21
Space diagonal
35834435.530859
Perimeter
62067063
Area
1.8534484730527E+14
Altitude
17917217.76543
Surface area
1.8534484730527E+14
Volume
1.0436468654852E+21
Height
9752898.0301406