20191187 is an odd 8-digits composite number following 20191186
and preceding 20191188 . In scientific notation, it is written as 2.0191187 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19889760 positive integers (up to 20191187) that are relatively prime to 20191187.
20191187 has 4 divisors, whose sum is 20492616
The reverse of 20191187 is 78119102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred ninety-one thousand one hundred eighty-seven
Scientific notation
2.0191187 × 10^7
Engineering notation
2.0191187 × 10^6
Prime Factorization
67 × 301361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20191187
Product of the distinct prime numbers
The prime factorization of 20191187 is 67 × 301361.
Since it has a total of 2 prime factors.
9 , 7 , 53 , 56 , 32 , 271 , 7402 , 5027 , 32987 , 15738 , 325566 , 477007 , 5841745 , 422419 , 655769 , 29571585 , 433592196 , 131478816 , 2067486769 , 4521888871
n×2
40382374
n×3
60573561
n×4
80764748
n×5
100955935
n÷2
10095593.5
n÷3
6730395.6666667
n÷3
5047796.75
n÷5
4038237.4
n2
407684032468969
n3
8.231624536495E+21
n4
1.6620627033016E+29
n5
3.3559018848088E+36
2 √n
4493.460470506
3 √n
272.30395573107
4 √n
67.033278828549
5 √n
28.908953476367
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
-20191186
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 20191187 can be divided by 4 positive divisors.
The sum of these divisors (counting 20191187) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001011111010011
3
Ternary
1101222211002202
4
Quaternary
1031001133103
5
Quinary
20132104222
6
Senary
2000433415
8
Octal
115013723
10
Decimal
20191187
12
Duodecimal
691886b
16
Hexadecimal
13417d3
20
Vigesimal
663hj7
36
Base36
c0rmb
md5
e8bf40c3c647d7837f29f3b0c3ee85de
sha1
48607b1b04568f2dc92f9b1c408f1cc6a2a5677c
sha256
1620071fb48c7ee8bc0648c8341a93da220288dd318923f3df23fb6c44d33450
sha512
3af3a5194fa98646fd3db340946cda2d9f6ae60fb7eb7663ef477f7c0924595a1ba0d26f5889263bc978764df4a90ed99117a224944ca1126fa8eda1c6e2374b
ripemd-160
0dee5765dce2a2e1b82cafd7775425c8d5f09283
Diameter
40382374
Circumference
126864969.49292
Area
1.2807771613904E+15
Volume
3.448054822795E+22
Surface area
5.1231086455615E+15
Circumference
126864969.49292
Perimeter
80764748
Area
407684032468969
Diagonal
28554650.495811
Surface area
2446104194813814
Volume
8.231624536495E+21
Space diagonal
34972161.749124
Perimeter
60573561
Area
1.765323644177E+14
Altitude
17486080.874562
Surface area
1.765323644177E+14
Volume
9.7010625498953E+20
Height
9518216.8319371