128538155 (number)

128538155 is an odd 9-digits composite number following 128538154 and preceding 128538156. In scientific notation, it is written as 1.28538155 × 10^8. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 101385600 positive integers (up to 128538155) that are relatively prime to 128538155.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28538155 × 10^8
Engineering notation 1.28538155 × 10^6

Prime Factorization of 128538155

Prime Factorization 5 × 101 × 359 × 709

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128538155
Product of the distinct prime numbers

The prime factorization of 128538155 is 5 × 101 × 359 × 709. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128538155)

Multiplication

n×y
n×2 257076310
n×3 385614465
n×4 514152620
n×5 642690775

Division

n÷y
n÷2 64269077.5
n÷3 42846051.666667
n÷3 32134538.75
n÷5 25707631

Exponentiation

ny
n2 16522057290804025
n3 2.1237147609642E+24
n4 2.7297837712061E+32
n5 3.5088136949977E+40

Nth Root

y√n
2√n 11337.46686875
3√n 504.6737166246
4√n 106.47754161676
5√n 41.860692865811

Divisors of 128538155

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 -128538154
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 128538155 can be divided by 16 positive divisors. The sum of these divisors (counting 128538155) is 1, the average is 0.0625.

Base conversion 128538155

Base System Value
2 Binary 111101010010101011000101011
3 Ternary 22221212102012102
4 Quaternary 13222111120223
5 Quinary 230401210110
6 Senary 20431004015
8 Octal 752253053
10 Decimal 128538155
12 Duodecimal 3706960b
16 Hexadecimal 7a9562b
20 Vigesimal 203757f
36 Base36 24j0ob

Cryptographic Hash Functions

md5 7037ef3a280929d5bc1dd57f82b0785d
sha1 52331e3f7ff73f3cd3580b60260fe7bc1b661ad7
sha256 b1d35eb95747875f83cfe0c90dd7ee9dca9ba00b20e3ad235db41f4d49d28ab7
sha512 d9590b0df12614097772e032438407a4c2f49599c8e6df38bf224939364f0c5fc86ec8538cb4ddeb1ce69f2fb041c678e02340cddfb2a1c1eea9df5135bdad93
ripemd-160 25135303b1642876d3488b38d6dec2d2d7a0cc70

128538155 as geometric shapes

Circle

Radius = n
Diameter 257076310
Circumference 807629046.90797
Area 5.190557380698E+16

Sphere

Radius = n
Volume 8.8957955884873E+24
Surface area 2.0762229522792E+17
Circumference 807629046.90797

Square

Length = n
Perimeter 514152620
Area 16522057290804025
Diagonal 181780402.08342

Cube

Length = n
Surface area 99132343744824150
Volume 2.1237147609642E+24
Space diagonal 222634615.17116

Equilateral Triangle

Length = n
Perimeter 385614465
Area 7.1542606683091E+15
Altitude 111317307.58558

Triangular Pyramid

Length = n
Surface area 7.1542606683091E+15
Volume 2.502821847973E+23
Height 60593467.361138