128691009 (number)

128691009 is an odd 9-digits composite number following 128691008 and preceding 128691010. In scientific notation, it is written as 1.28691009 × 10^8. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 78472800 positive integers (up to 128691009) that are relatively prime to 128691009.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred ninety-one thousand nine

Notation

Scientific notation 1.28691009 × 10^8
Engineering notation 1.28691009 × 10^6

Prime Factorization of 128691009

Prime Factorization 9 × 19 × 29 × 25951

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128691009
Product of the distinct prime numbers

The prime factorization of 128691009 is 9 × 19 × 29 × 25951. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 54, 32, 553, 484, 5535, 8361, 35917, 38599, 383977, 465846, 3771628, 4373821, 63659136, 34026310, 124857236, 482730677, 3911356001, 5371078611

Basic calculations (n = 128691009)

Multiplication

n×y
n×2 257382018
n×3 386073027
n×4 514764036
n×5 643455045

Division

n÷y
n÷2 64345504.5
n÷3 42897003
n÷3 32172752.25
n÷5 25738201.8

Exponentiation

ny
n2 16561375797438081
n3 2.1313001618005E+24
n4 2.7427916830397E+32
n5 3.5297262916718E+40

Nth Root

y√n
2√n 11344.205966043
3√n 504.87368536366
4√n 106.5091825433
5√n 41.870644047877

Divisors of 128691009

1, 9, 19, 29, 171, 261, 551, 4959, 25951, 233559, 493069, 752579, 4437621, 6773211, 14299001, 128691009

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 -128691008
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 128691009 can be divided by 16 positive divisors. The sum of these divisors (counting 128691009) is 1, the average is 0.0625.

Base conversion 128691009

Base System Value
2 Binary 111101010111010101101000001
3 Ternary 22222011011212200
4 Quaternary 13222322231001
5 Quinary 230421103014
6 Senary 20434143413
8 Octal 752725501
10 Decimal 128691009
12 Duodecimal 37121b69
16 Hexadecimal 7abab41
20 Vigesimal 20467a9
36 Base36 24mam9

Cryptographic Hash Functions

md5 2fd49bd87f586f99f8d6ac21098c3ade
sha1 0076e807c214c7f0891c2ceba775d49d0f219e3b
sha256 97536aa4fb699c05e9ae04cad431f02573ec38df9dc12f926996a01f9238d56c
sha512 b3736d5bc346746afe78e0445d8ce29f4542a83fde3cb27a9eacc75ff4027ed036f4736620dd245702e256753ba3bdb52cfaac0e6618c09fee905e1404649388
ripemd-160 628b71a81dba732f5389f6ff3289f7f6814f3374

128691009 as geometric shapes

Circle

Radius = n
Diameter 257382018
Circumference 808589456.91492
Area 5.2029096538571E+16

Sphere

Radius = n
Volume 8.9275692412095E+24
Surface area 2.0811638615429E+17
Circumference 808589456.91492

Square

Length = n
Perimeter 514764036
Area 16561375797438081
Diagonal 181996570.28328

Cube

Length = n
Surface area 99368254784628486
Volume 2.1313001618005E+24
Space diagonal 222899366.0653

Equilateral Triangle

Length = n
Perimeter 386073027
Area 7.1712860811011E+15
Altitude 111449683.03265

Triangular Pyramid

Length = n
Surface area 7.1712860811011E+15
Volume 2.5117613285885E+23
Height 60665523.427759