72128 (number)

72128 is an even 5-digits composite number following 72127 and preceding 72129. In scientific notation, it is written as 7.2128 × 10^4. The sum of its digits is 20. It has a total of 9 prime factors and 42 positive divisors. There are 29568 positive integers (up to 72128) that are relatively prime to 72128.

Interesting facts

Basic properties

Name

Name seventy-two thousand one hundred twenty-eight

Notation

Scientific notation 7.2128 × 10^4
Engineering notation 7.2128 × 10^3

Prime Factorization of 72128

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 23

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 322
Product of the distinct prime numbers

The prime factorization of 72128 is 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 23. Since it has a total of 9 prime factors.

Most popular turbo-numbers

6, 6, 30, 6, 351, 855, 7114, 3976, 46017, 76952, 983503, 552360, 7843362, 1958526, 87552098, 33377860, 110065726, 415753600, 9428777011, 3432945068

Basic calculations (n = 72128)

Multiplication

n×y
n×2 144256
n×3 216384
n×4 288512
n×5 360640

Division

n÷y
n÷2 36064
n÷3 24042.666666667
n÷3 18032
n÷5 14425.6

Exponentiation

ny
n2 5202448384
n3 375242197041152
n4 2.7065469188184E+19
n5 1.9521781616054E+24

Nth Root

y√n
2√n 268.56656530551
3√n 41.626314711666
4√n 16.388000650034
5√n 9.3674369362743

Divisors of 72128

1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 49, 56, 64, 92, 98, 112, 161, 184, 196, 224, 322, 368, 392, 448, 644, 736, 784, 1127, 1288, 1472, 1568, 2254, 2576, 3136, 4508, 5152, 9016, 10304, 18032, 36064, 72128

42 divisors

τ Total Divisors 42
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72127
Sum of the proper positive divisors of n
A Arithmetic Mean 0.023809523809524
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 42
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72128 can be divided by 42 positive divisors. The sum of these divisors (counting 72128) is 1, the average is 0.023809523809524.

Base conversion 72128

Base System Value
2 Binary 10001100111000000
3 Ternary 10122221102
4 Quaternary 101213000
5 Quinary 4302003
6 Senary 1313532
8 Octal 214700
10 Decimal 72128
12 Duodecimal 358a8
16 Hexadecimal 119c0
20 Vigesimal 9068
36 Base36 1jnk

Cryptographic Hash Functions

md5 0fe0039c60208b72631004ec52716c31
sha1 25aa868281464ed5fa77e2672fc1cde1e5818b15
sha256 47810827367a4e7ad9575caa08c8f44807f47b8758473522c83369409810095e
sha512 d299b7d8afce635a6a2c89446259ce3d0fb3d32274aa321459ae4267e9d50441f609106f5e3f6bc4c30aa00aedfb70ae0483fb37b3d5430fc10431b64e85a961
ripemd-160 ad18a187855907bf3bccd9a93ffb854b8e2718b7

72128 as geometric shapes

Circle

Radius = n
Diameter 144256
Circumference 453193.58983625
Area 16343973623.854

Sphere

Radius = n
Volume 1.5718108393885E+15
Surface area 65375894495.418
Circumference 453193.58983625

Square

Length = n
Perimeter 288512
Area 5202448384
Diagonal 102004.39582685

Cube

Length = n
Surface area 31214690304
Volume 375242197041152
Space diagonal 124929.36064833

Equilateral Triangle

Length = n
Perimeter 216384
Area 2252726231.2106
Altitude 62464.680324164

Triangular Pyramid

Length = n
Surface area 2252726231.2106
Volume 44222717019190
Height 34001.465275616