20129191 is an odd 8-digits composite number following 20129190
and preceding 20129192 . In scientific notation, it is written as 2.0129191 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20017800 positive integers (up to 20129191) that are relatively prime to 20129191.
20129191 has 4 divisors, whose sum is 20240584
The reverse of 20129191 is 19192102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-nine thousand one hundred ninety-one
Scientific notation
2.0129191 × 10^7
Engineering notation
2.0129191 × 10^6
Prime Factorization
181 × 111211
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129191
Product of the distinct prime numbers
The prime factorization of 20129191 is 181 × 111211.
Since it has a total of 2 prime factors.
3 , 5 , 49 , 49 , 508 , 496 , 1550 , 5591 , 65051 , 531 , 505276 , 397162 , 3267516 , 3140872 , 32273016 , 27540892 , 808033857 , 965822405 , 3320722719 , 1228792302
n×2
40258382
n×3
60387573
n×4
80516764
n×5
100645955
n÷2
10064595.5
n÷3
6709730.3333333
n÷3
5032297.75
n÷5
4025838.2
n2
405184330314481
n3
8.1560327751073E+21
n4
1.6417434153239E+29
n5
3.3046966780048E+36
2 √n
4486.5566975131
3 √n
272.02497157558
4 √n
66.9817639176
5 √n
28.891178942009
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
-20129190
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 20129191 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129191) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010010110100111
3
Ternary
1101212200001121
4
Quaternary
1030302112213
5
Quinary
20123113231
6
Senary
1555234411
8
Octal
114622647
10
Decimal
20129191
12
Duodecimal
68a8a07
16
Hexadecimal
13325a7
20
Vigesimal
65g2jb
36
Base36
bzfs7
md5
860a088e56e645ad6f4ce2101ba5324a
sha1
10e90fda5ac6096b63e9b49cde63e4fa83a2fdf7
sha256
a1235efcb701c5632be4391c53b7e9f106c66b59603a076270f69c55ece1ff06
sha512
af74fd09cd148a711c84fcbdeb6f38530db20bbdf8d1ddae14cc877cd337c8056ac195eb1944dca74fb56291d9428eeac8ceb708c047eaff3d9e388c700a6345
ripemd-160
797636cad253eca7f98b927909119e31d6db6266
Diameter
40258382
Circumference
126475437.13661
Area
1.2729241154657E+15
Volume
3.4163910198286E+22
Surface area
5.0916964618627E+15
Circumference
126475437.13661
Perimeter
80516764
Area
405184330314481
Diagonal
28466974.911798
Surface area
2431105981886886
Volume
8.1560327751073E+21
Space diagonal
34864781.527258
Perimeter
60387573
Area
1.7544996163386E+14
Altitude
17432390.763629
Surface area
1.7544996163386E+14
Volume
9.6119768047635E+20
Height
9488991.6372661