20129491 is an odd 8-digits composite number following 20129490
and preceding 20129492 . In scientific notation, it is written as 2.0129491 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20114752 positive integers (up to 20129491) that are relatively prime to 20129491.
20129491 has 4 divisors, whose sum is 20144232
The reverse of 20129491 is 19492102
Previous prime number is 1523
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-nine thousand four hundred ninety-one
Scientific notation
2.0129491 × 10^7
Engineering notation
2.0129491 × 10^6
Prime Factorization
1523 × 13217
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129491
Product of the distinct prime numbers
The prime factorization of 20129491 is 1523 × 13217.
Since it has a total of 2 prime factors.
1 , 9 , 79 , 27 , 127 , 773 , 1436 , 2335 , 46906 , 29919 , 655541 , 513032 , 7720291 , 7508355 , 3463256 , 93441822 , 844626443 , 947032643 , 8146967976 , 2552144253
n×2
40258982
n×3
60388473
n×4
80517964
n×5
100647455
n÷2
10064745.5
n÷3
6709830.3333333
n÷3
5032372.75
n÷5
4025898.2
n2
405196407919081
n3
8.1563974464395E+21
n4
1.6418412899053E+29
n5
3.3049429468576E+36
2 √n
4486.5901306003
3 √n
272.02632296432
4 √n
66.982013485713
5 √n
28.891265058754
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
-20129490
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 20129491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010011011010011
3
Ternary
1101212200110201
4
Quaternary
1030302123103
5
Quinary
20123120431
6
Senary
1555240031
8
Octal
114623323
10
Decimal
20129491
12
Duodecimal
68a9017
16
Hexadecimal
13326d3
20
Vigesimal
65g3eb
36
Base36
bzg0j
md5
2ffdaddef7e4eb42473c8a77ea0a7dca
sha1
2d0150bd72ba139c09eab224702db7fb05dc6713
sha256
1acb3a674cd66370f7d5e2885b3239fe985fe20f512138ed6b89fc7b963ec5d2
sha512
711edc0c5fbf6ae7b7c506f620037f707e3fa2d3f83f9071904a4dae9c56fe0ee4a6855aef8b7118f2d64f79bd32c895e7d014e7ccd91b3e10981b4aafa6e4bc
ripemd-160
747a49695c21455453d7cf3bd07626e84c01b9e6
Diameter
40258982
Circumference
126477322.0922
Area
1.2729620583796E+15
Volume
3.416543772999E+22
Surface area
5.0918482335182E+15
Circumference
126477322.0922
Perimeter
80517964
Area
405196407919081
Diagonal
28467399.175867
Surface area
2431178447514486
Volume
8.1563974464395E+21
Space diagonal
34865301.1425
Perimeter
60388473
Area
1.7545519139006E+14
Altitude
17432650.57125
Surface area
1.7545519139006E+14
Volume
9.61240657405E+20
Height
9489133.0586224