20978091 is an odd 8-digits composite number following 20978090
and preceding 20978092 . In scientific notation, it is written as 2.0978091 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 13985388 positive integers (up to 20978091) that are relatively prime to 20978091.
20978091 has 6 divisors, whose sum is 30301700
The reverse of 20978091 is 19087902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred seventy-eight thousand ninety-one
Scientific notation
2.0978091 × 10^7
Engineering notation
2.0978091 × 10^6
Prime Factorization
3 × 3 × 2330899
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6992697
Product of the distinct prime numbers
The prime factorization of 20978091 is 3 × 3 × 2330899.
Since it has a total of 3 prime factors.
5 , 10 , 47 , 50 , 988 , 390 , 5426 , 5807 , 3275 , 7262 , 272141 , 89752 , 6687967 , 1606124 , 87856639 , 77112017 , 689962233 , 58146801 , 9307431965 , 2565046140
n×2
41956182
n×3
62934273
n×4
83912364
n×5
104890455
n÷2
10489045.5
n÷3
6992697
n÷3
5244522.75
n÷5
4195618.2
n2
440080302004281
n3
9.2320446227533E+21
n4
1.9367067221218E+29
n5
4.0628409856983E+36
2 √n
4580.1846032666
3 √n
275.79643938012
4 √n
67.677061130538
5 √n
29.130852417534
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20978090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20978091 can be divided by 6 positive divisors.
The sum of these divisors (counting 20978091) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000000001100110101011
3
Ternary
1110110210112100
4
Quaternary
1100001212223
5
Quinary
20332244331
6
Senary
2025344443
8
Octal
120014653
10
Decimal
20978091
12
Duodecimal
7038123
16
Hexadecimal
14019ab
20
Vigesimal
6b254b
36
Base36
chmsr
md5
c6e111a0d035c8fe8ba26d9009b8e8ec
sha1
dcf0cdbc3eb21ddd004b9164b95317c018884916
sha256
82dd908265cb4476f1ad02c8bbdd6e3db953a844676f7b85cebb078582c8c6d5
sha512
0e705ec6d60d8a00266329f279bfc4e1e327bf3cc345040e6ee2b5ef073248cf332f8ca10a14843f7dd884ff9d73a24dcaa04ce326650aa3ab5406d28e8efcea
ripemd-160
162bb238bd32ff90fbe5edb53eadc4698f6726e5
Diameter
41956182
Circumference
131809233.14388
Area
1.3825530437662E+15
Volume
3.867109808594E+22
Surface area
5.5302121750649E+15
Circumference
131809233.14388
Perimeter
83912364
Area
440080302004281
Diagonal
29667500.804897
Surface area
2640481812025686
Volume
9.2320446227533E+21
Space diagonal
36335119.457803
Perimeter
62934273
Area
1.9056036062042E+14
Altitude
18167559.728902
Surface area
1.9056036062042E+14
Volume
1.0880068928276E+21
Height
9889166.9349657