20809739 is an odd 8-digits composite number following 20809738
and preceding 20809740 . In scientific notation, it is written as 2.0809739 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20738424 positive integers (up to 20809739) that are relatively prime to 20809739.
20809739 has 4 divisors, whose sum is 20881056
The reverse of 20809739 is 93790802
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred nine thousand seven hundred thirty-nine
Scientific notation
2.0809739 × 10^7
Engineering notation
2.0809739 × 10^6
Prime Factorization
293 × 71023
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20809739
Product of the distinct prime numbers
The prime factorization of 20809739 is 293 × 71023.
Since it has a total of 2 prime factors.
8 , 6 , 45 , 1 , 453 , 924 , 2634 , 5769 , 45285 , 85052 , 439389 , 161028 , 7228659 , 572885 , 37094667 , 6062275 , 597785951 , 591134527 , 6012085915 , 8176995256
n×2
41619478
n×3
62429217
n×4
83238956
n×5
104048695
n÷2
10404869.5
n÷3
6936579.6666667
n÷3
5202434.75
n÷5
4161947.8
n2
433045237248121
n3
9.0115583623265E+21
n4
1.8752817750328E+29
n5
3.902412428989E+36
2 √n
4561.7692839511
3 √n
275.05668913961
4 √n
67.540871211076
5 √n
29.083945800882
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
-20809738
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 20809739 can be divided by 4 positive divisors.
The sum of these divisors (counting 20809739) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000100000001011
3
Ternary
1110011020121002
4
Quaternary
1033120200023
5
Quinary
20311402424
6
Senary
2022005215
8
Octal
117304013
10
Decimal
20809739
12
Duodecimal
6b7680b
16
Hexadecimal
13d880b
20
Vigesimal
6a146j
36
Base36
ce0wb
md5
60d4d22c136e0baef28ddb8cd411152d
sha1
10b7041288af3a9e0987d6a315ad39269b7582f9
sha256
741c0c30a518672cec487f2f635f6c6de88dfb06deaba2ffd2b7601a2197c175
sha512
a8841bdb9464aa0726a771bd8773894f1979ab6ba4b3370c666e74e070d32012b8b762e9ee7aaf535d08dde94d6ee4fa8590381f1762a4f4cc210081eebc5332
ripemd-160
fc03b7f411218eb1d5c8ed9371d047928f1b7fe1
Diameter
41619478
Circumference
130751446.33104
Area
1.3604517360107E+15
Volume
3.7747527397974E+22
Surface area
5.441806944043E+15
Circumference
130751446.33104
Perimeter
83238956
Area
433045237248121
Diagonal
29429415.123244
Surface area
2598271423488726
Volume
9.0115583623265E+21
Space diagonal
36043525.240248
Perimeter
62429217
Area
1.8751408822237E+14
Altitude
18021762.620124
Surface area
1.8751408822237E+14
Volume
1.0620223378432E+21
Height
9809805.0410814