128972644 (number)

128972644 is an even 9-digits composite number following 128972643 and preceding 128972645. In scientific notation, it is written as 1.28972644 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 63993800 positive integers (up to 128972644) that are relatively prime to 128972644.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred seventy-two thousand six hundred forty-four

Notation

Scientific notation 1.28972644 × 10^8
Engineering notation 1.28972644 × 10^6

Prime Factorization of 128972644

Prime Factorization 2 × 2 × 131 × 246131

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 64486322
Product of the distinct prime numbers

The prime factorization of 128972644 is 2 × 2 × 131 × 246131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128972644)

Multiplication

n×y
n×2 257945288
n×3 386917932
n×4 515890576
n×5 644863220

Division

n÷y
n÷2 64486322
n÷3 42990881.333333
n÷3 32243161
n÷5 25794528.8

Exponentiation

ny
n2 16633942900350736
n3 2.1453235960033E+24
n4 2.7668805641213E+32
n5 3.5685190198693E+40

Nth Root

y√n
2√n 11356.612346999
3√n 505.24171547877
4√n 106.56740752687
5√n 41.888954464012

Divisors of 128972644

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128972643
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128972644 can be divided by 12 positive divisors. The sum of these divisors (counting 128972644) is 1, the average is 0.083333333333333.

Base conversion 128972644

Base System Value
2 Binary 111101011111111011101100100
3 Ternary 22222200111012121
4 Quaternary 13223333131210
5 Quinary 231004111034
6 Senary 20444155324
8 Octal 753773544
10 Decimal 128972644
12 Duodecimal 37238b44
16 Hexadecimal 7aff764
20 Vigesimal 2061bc4
36 Base36 24sbxg

Cryptographic Hash Functions

md5 45af39b83711b1664353f180152c2128
sha1 3b779f04437242f51298a506b1ecd5e73dac0942
sha256 84beb0d6e6e8bd160bb14d6602b775c32433aecdc4cb71b8529bc43c4b5265b7
sha512 6219427a26a35850157319661a62696ffcf001ea21851e11ef6781976cc37a7fe83384a8ef5c63ae008d05f9a608704b53108dc9cbfbbee69df6fdc963d3a8c4
ripemd-160 eb32eb42f745355a5113ba515f8a6fd389c834a6

128972644 as geometric shapes

Circle

Radius = n
Diameter 257945288
Circumference 810359021.8089
Area 5.2257072815974E+16

Sphere

Radius = n
Volume 8.9863104650356E+24
Surface area 2.090282912639E+17
Circumference 810359021.8089

Square

Length = n
Perimeter 515890576
Area 16633942900350736
Diagonal 182394862.31992

Cube

Length = n
Surface area 99803657402104416
Volume 2.1453235960033E+24
Space diagonal 223387172.19449

Equilateral Triangle

Length = n
Perimeter 386917932
Area 7.2027085584018E+15
Altitude 111693586.09725

Triangular Pyramid

Length = n
Surface area 7.2027085584018E+15
Volume 2.528288104289E+23
Height 60798287.439972