128538561 (number)

128538561 is an odd 9-digits composite number following 128538560 and preceding 128538562. In scientific notation, it is written as 1.28538561 × 10^8. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 83869040 positive integers (up to 128538561) that are relatively prime to 128538561.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred thirty-eight thousand five hundred sixty-one

Notation

Scientific notation 1.28538561 × 10^8
Engineering notation 1.28538561 × 10^6

Prime Factorization of 128538561

Prime Factorization 3 × 47 × 911621

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128538561
Product of the distinct prime numbers

The prime factorization of 128538561 is 3 × 47 × 911621. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128538561)

Multiplication

n×y
n×2 257077122
n×3 385615683
n×4 514154244
n×5 642692805

Division

n÷y
n÷2 64269280.5
n÷3 42846187
n÷3 32134640.25
n÷5 25707712.2

Exponentiation

ny
n2 16522161663950721
n3 2.1237348848936E+24
n4 2.7298182604972E+32
n5 3.5088691099584E+40

Nth Root

y√n
2√n 11337.48477397
3√n 504.67424797736
4√n 106.47762569653
5√n 41.860719309974

Divisors of 128538561

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128538560
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128538561 can be divided by 8 positive divisors. The sum of these divisors (counting 128538561) is 1, the average is 0.125.

Base conversion 128538561

Base System Value
2 Binary 111101010010101011111000001
3 Ternary 22221212102202110
4 Quaternary 13222111133001
5 Quinary 230401213221
6 Senary 20431005533
8 Octal 752253701
10 Decimal 128538561
12 Duodecimal 370698a9
16 Hexadecimal 7a957c1
20 Vigesimal 2037681
36 Base36 24j0zl

Cryptographic Hash Functions

md5 2ef594d8e389755ab0ba1f3101875368
sha1 a216be7ff88ba29e49be7040425d3c7de6e44e02
sha256 8391784ca9f4f17c2359dbd56e7243221449706a328ab4e4f418cc103db2f4d8
sha512 407618d426086603ce5ac53dcbc3de0bab26bdc6198f98b279834b3927418e0964ab28b998f02c7cb53971110abadb244fc95ee76f390f4205b0f05eb1e18d99
ripemd-160 8a7a8933b9456092a47e3c73060074c5174f6963

128538561 as geometric shapes

Circle

Radius = n
Diameter 257077122
Circumference 807631597.88121
Area 5.190590170489E+16

Sphere

Radius = n
Volume 8.8958798834054E+24
Surface area 2.0762360681956E+17
Circumference 807631597.88121

Square

Length = n
Perimeter 514154244
Area 16522161663950721
Diagonal 181780976.25412

Cube

Length = n
Surface area 99132969983704326
Volume 2.1237348848936E+24
Space diagonal 222635318.38379

Equilateral Triangle

Length = n
Perimeter 385615683
Area 7.1543058632073E+15
Altitude 111317659.1919

Triangular Pyramid

Length = n
Surface area 7.1543058632073E+15
Volume 2.5028455642512E+23
Height 60593658.751374