20512989 (number)

20512989 is an odd 8-digits composite number following 20512988 and preceding 20512990. In scientific notation, it is written as 2.0512989 × 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 20512989) that are relatively prime to 20512989.

Interesting facts

Basic properties

Name

Name twenty million five hundred twelve thousand nine hundred eighty-nine

Notation

Scientific notation 2.0512989 × 10^7
Engineering notation 2.0512989 × 10^6

Prime Factorization of 20512989

Prime Factorization 7 × 9 × 19 × 17137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20512989
Product of the distinct prime numbers

The prime factorization of 20512989 is 7 × 9 × 19 × 17137. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 61, 52, 183, 801, 5290, 5819, 68385, 32777, 780977, 620448, 2284021, 7237798, 67977236, 92608950, 24287556, 150394672, 4898754690, 3284813950

Basic calculations (n = 20512989)

Multiplication

n×y
n×2 41025978
n×3 61538967
n×4 82051956
n×5 102564945

Division

n÷y
n÷2 10256494.5
n÷3 6837663
n÷3 5128247.25
n÷5 4102597.8

Exponentiation

ny
n2 420782717714121
n3 8.6315112598599E+21
n4 1.7705809552688E+29
n5 3.6319907659039E+36

Nth Root

y√n
2√n 4529.1267370212
3√n 273.74297473683
4√n 67.298787039747
5√n 29.000520283729

Divisors of 20512989

1, 7, 9, 19, 63, 133, 171, 1197, 17137, 119959, 154233, 325603, 1079631, 2279221, 2930427, 20512989

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 -20512988
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 20512989 can be divided by 16 positive divisors. The sum of these divisors (counting 20512989) is 1, the average is 0.0625.

Base conversion 20512989

Base System Value
2 Binary 1001110010000000011011101
3 Ternary 1102121011112100
4 Quaternary 1032100003131
5 Quinary 20222403424
6 Senary 2011355313
8 Octal 116200335
10 Decimal 20512989
12 Duodecimal 6a52b39
16 Hexadecimal 13900dd
20 Vigesimal 684299
36 Base36 c7nx9

Cryptographic Hash Functions

md5 7de3b922ba17c9b4898815e0f4806846
sha1 11843718a69aae84c516a3afc74a8dfac900b279
sha256 f4f2c50c567be0a7bbbe92ec23d70c5eeb9bf18cd4abb632661563ab74f60b43
sha512 07599cf40e01faf456376e9123f9f472aaa23d718f7f466927101746435b9353be94aa077a4f2cfd739fefd50ba5e5e187c76ae0d796697a39c7b785f3f0d03a
ripemd-160 3f5c12ad4ce9cf6d8d086d9b291eb607b41df2f4

20512989 as geometric shapes

Circle

Radius = n
Diameter 41025978
Circumference 128886911.09114
Area 1.3219278947282E+15

Sphere

Radius = n
Volume 3.6155589817804E+22
Surface area 5.2877115789129E+15
Circumference 128886911.09114

Square

Length = n
Perimeter 82051956
Area 420782717714121
Diagonal 29009747.24861

Cube

Length = n
Surface area 2524696306284726
Volume 8.6315112598599E+21
Space diagonal 35529539.163101

Equilateral Triangle

Length = n
Perimeter 61538967
Area 1.8220426150694E+14
Altitude 17764769.581551

Triangular Pyramid

Length = n
Surface area 1.8220426150694E+14
Volume 1.0172333572892E+21
Height 9669915.7495367