128428181 (number)

128428181 is an odd 9-digits composite number following 128428180 and preceding 128428182. In scientific notation, it is written as 1.28428181 × 10^8. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 110081292 positive integers (up to 128428181) that are relatively prime to 128428181.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred twenty-eight thousand one hundred eighty-one

Notation

Scientific notation 1.28428181 × 10^8
Engineering notation 1.28428181 × 10^6

Prime Factorization of 128428181

Prime Factorization 7 × 18346883

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128428181
Product of the distinct prime numbers

The prime factorization of 128428181 is 7 × 18346883. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 10, 20, 60, 642, 623, 6966, 5389, 39860, 54012, 384735, 648725, 4806768, 3113549, 46580899, 58738466, 131123757, 631294853, 2203998237, 3815837960

Basic calculations (n = 128428181)

Multiplication

n×y
n×2 256856362
n×3 385284543
n×4 513712724
n×5 642140905

Division

n÷y
n÷2 64214090.5
n÷3 42809393.666667
n÷3 32107045.25
n÷5 25685636.2

Exponentiation

ny
n2 16493797674968761
n3 2.1182684331783E+24
n4 2.720453617428E+32
n5 3.4938290958115E+40

Nth Root

y√n
2√n 11332.615805718
3√n 504.52974686129
4√n 106.45475943197
5√n 41.853527422784

Divisors of 128428181

1, 7, 18346883, 128428181

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128428180
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128428181 can be divided by 4 positive divisors. The sum of these divisors (counting 128428181) is 1, the average is 0.25.

Base conversion 128428181

Base System Value
2 Binary 111101001111010100010010101
3 Ternary 22221122211100022
4 Quaternary 13221322202111
5 Quinary 230334200211
6 Senary 20424354525
8 Octal 751724225
10 Decimal 128428181
12 Duodecimal 37015a45
16 Hexadecimal 7a7a895
20 Vigesimal 202da91
36 Base36 24gnth

Cryptographic Hash Functions

md5 1ab89367afdf799d48ccd937418da714
sha1 6029f326f20ad362b9da0d07fb2e559664c54481
sha256 2545a45dc26bc12f3216fa30b64859d5dd2474b86cbdc395263e3af8ec87d9fa
sha512 4babcae173fba9bd29d62333092e4e5dc3092bb82568dfc4b1acb2bbf149d008350e37d24469b49bfd12582624ee630d446ba8d7904649a2b3cec584c0ed7e60
ripemd-160 e0308204a65da6616cf11aa671524b21b23aa780

128428181 as geometric shapes

Circle

Radius = n
Diameter 256856362
Circumference 806938059.887
Area 5.1816793605478E+16

Sphere

Radius = n
Volume 8.8729820640053E+24
Surface area 2.0726717442191E+17
Circumference 806938059.887

Square

Length = n
Perimeter 513712724
Area 16493797674968761
Diagonal 181624875.36111

Cube

Length = n
Surface area 98962786049812566
Volume 2.1182684331783E+24
Space diagonal 222444134.61565

Equilateral Triangle

Length = n
Perimeter 385284543
Area 7.1420238957018E+15
Altitude 111222067.30783

Triangular Pyramid

Length = n
Surface area 7.1420238957018E+15
Volume 2.4964032891229E+23
Height 60541625.120369