20129491 (number)

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.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-nine thousand four hundred ninety-one

Notation

Scientific notation 2.0129491 × 10^7
Engineering notation 2.0129491 × 10^6

Prime Factorization of 20129491

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.

Most popular turbo-numbers

Basic calculations (n = 20129491)

Multiplication

n×y
n×2 40258982
n×3 60388473
n×4 80517964
n×5 100647455

Division

n÷y
n÷2 10064745.5
n÷3 6709830.3333333
n÷3 5032372.75
n÷5 4025898.2

Exponentiation

ny
n2 405196407919081
n3 8.1563974464395E+21
n4 1.6418412899053E+29
n5 3.3049429468576E+36

Nth Root

y√n
2√n 4486.5901306003
3√n 272.02632296432
4√n 66.982013485713
5√n 28.891265058754

Divisors of 20129491

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 conversion 20129491

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

Cryptographic Hash Functions

md5 2ffdaddef7e4eb42473c8a77ea0a7dca
sha1 2d0150bd72ba139c09eab224702db7fb05dc6713
sha256 1acb3a674cd66370f7d5e2885b3239fe985fe20f512138ed6b89fc7b963ec5d2
sha512 711edc0c5fbf6ae7b7c506f620037f707e3fa2d3f83f9071904a4dae9c56fe0ee4a6855aef8b7118f2d64f79bd32c895e7d014e7ccd91b3e10981b4aafa6e4bc
ripemd-160 747a49695c21455453d7cf3bd07626e84c01b9e6

20129491 as geometric shapes

Circle

Radius = n
Diameter 40258982
Circumference 126477322.0922
Area 1.2729620583796E+15

Sphere

Radius = n
Volume 3.416543772999E+22
Surface area 5.0918482335182E+15
Circumference 126477322.0922

Square

Length = n
Perimeter 80517964
Area 405196407919081
Diagonal 28467399.175867

Cube

Length = n
Surface area 2431178447514486
Volume 8.1563974464395E+21
Space diagonal 34865301.1425

Equilateral Triangle

Length = n
Perimeter 60388473
Area 1.7545519139006E+14
Altitude 17432650.57125

Triangular Pyramid

Length = n
Surface area 1.7545519139006E+14
Volume 9.61240657405E+20
Height 9489133.0586224