20991195 is an odd 8-digits composite number following 20991194
and preceding 20991196 . In scientific notation, it is written as 2.0991195 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 11104128 positive integers (up to 20991195) that are relatively prime to 20991195.
20991195 has 16 divisors, whose sum is 28216320
The reverse of 20991195 is 59119902
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred ninety-one thousand one hundred ninety-five
Scientific notation
2.0991195 × 10^7
Engineering notation
2.0991195 × 10^6
Prime Factorization
9 × 5 × 127 × 3673
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991195
Product of the distinct prime numbers
The prime factorization of 20991195 is 9 × 5 × 127 × 3673.
Since it has a total of 4 prime factors.
7 , 9 , 99 , 26 , 810 , 270 , 6012 , 4759 , 39702 , 81676 , 173102 , 664942 , 5147993 , 4172949 , 39454866 , 81568693 , 555956403 , 715722124 , 2532897347 , 886050037
n×2
41982390
n×3
62973585
n×4
83964780
n×5
104955975
n÷2
10495597.5
n÷3
6997065
n÷3
5247798.75
n÷5
4198239
n2
440630267528025
n3
9.2493558685829E+21
n4
1.9415503266182E+29
n5
4.0755461508356E+36
2 √n
4581.6148899706
3 √n
275.85385299794
4 √n
67.687627303449
5 √n
29.13449083579
1 , 5 , 9 , 45 , 127 , 635 , 1143 , 3673 , 5715 , 18365 , 33057 , 165285 , 466471 , 2332355 , 4198239 , 20991195
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991194
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991195 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991195) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100110011011011
3
Ternary
1110111110111200
4
Quaternary
1100010303123
5
Quinary
20333204240
6
Senary
2025525243
8
Octal
120046333
10
Decimal
20991195
12
Duodecimal
7043823
16
Hexadecimal
1404cdb
20
Vigesimal
6b3hjf
36
Base36
chwwr
md5
9c9facfc6cf8048def4f880df636e60b
sha1
672eadc202724431d695e0555a33f524e5ee55e9
sha256
679877426e5f2c42271e03c036599b2cfaa872c5657882c4b100ee768954df57
sha512
c0f36aa65870043fb0f2c0b386b41ef6bd673ce4095b8e27bf9383e9a9f0ee403b5b920a626ba4fc1fb068b415fa349e50716d269ce43d80223fc73246645d26
ripemd-160
f2f584b54a90048482d7b5ee9376834000fbd19c
Diameter
41982390
Circumference
131891568.00414
Area
1.3842808114153E+15
Volume
3.8743611262904E+22
Surface area
5.5371232456614E+15
Circumference
131891568.00414
Perimeter
83964780
Area
440630267528025
Diagonal
29686032.659418
Surface area
2643781605168150
Volume
9.2493558685829E+21
Space diagonal
36357816.251586
Perimeter
62973585
Area
1.907985026778E+14
Altitude
18178908.125793
Surface area
1.907985026778E+14
Volume
1.0900470427138E+21
Height
9895344.2198061