128207855 (number)

128207855 is an odd 9-digits composite number following 128207854 and preceding 128207856. In scientific notation, it is written as 1.28207855 × 10^8. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 101992576 positive integers (up to 128207855) that are relatively prime to 128207855.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred seven thousand eight hundred fifty-five

Notation

Scientific notation 1.28207855 × 10^8
Engineering notation 1.28207855 × 10^6

Prime Factorization of 128207855

Prime Factorization 5 × 179 × 143249

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128207855
Product of the distinct prime numbers

The prime factorization of 128207855 is 5 × 179 × 143249. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128207855)

Multiplication

n×y
n×2 256415710
n×3 384623565
n×4 512831420
n×5 641039275

Division

n÷y
n÷2 64103927.5
n÷3 42735951.666667
n÷3 32051963.75
n÷5 25641571

Exponentiation

ny
n2 16437254083701025
n3 2.1073850881613E+24
n4 2.7018332181215E+32
n5 3.463962414631E+40

Nth Root

y√n
2√n 11322.890752807
3√n 504.24106502494
4√n 106.40907269969
5√n 41.839157126974

Divisors of 128207855

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 -128207854
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 128207855 can be divided by 8 positive divisors. The sum of these divisors (counting 128207855) is 1, the average is 0.125.

Base conversion 128207855

Base System Value
2 Binary 111101001000100101111101111
3 Ternary 22221020122010002
4 Quaternary 13221010233233
5 Quinary 230310122410
6 Senary 20415534515
8 Octal 751045757
10 Decimal 128207855
12 Duodecimal 36b2a43b
16 Hexadecimal 7a44bef
20 Vigesimal 2015jcf
36 Base36 24bxtb

Cryptographic Hash Functions

md5 8bfb4c0812f2d857ca53f8c9fe72f7ec
sha1 75226ef045573e330e20f9ccf003694eb4642e45
sha256 f2d155126f844bc2542223897f8e40570059255094ef8f0426b2e1e57a4081c2
sha512 a974035fa6bb3a403c8a0416cbe08ff98cecb7ac422d38da7ae7cebaa309fd9c9c1f758c0e35855813933a5a8020045c608057b4cf5b82448c3d73962910e19a
ripemd-160 57e5fc9d6d94a0448974635a87db239d48246c35

128207855 as geometric shapes

Circle

Radius = n
Diameter 256415710
Circumference 805553710.80101
Area 5.1639156674544E+16

Sphere

Radius = n
Volume 8.827394015003E+24
Surface area 2.0655662669818E+17
Circumference 805553710.80101

Square

Length = n
Perimeter 512831420
Area 16437254083701025
Diagonal 181313287.34376

Cube

Length = n
Surface area 98623524502206150
Volume 2.1073850881613E+24
Space diagonal 222062518.78942

Equilateral Triangle

Length = n
Perimeter 384623565
Area 7.1175398024723E+15
Altitude 111031259.39471

Triangular Pyramid

Length = n
Surface area 7.1175398024723E+15
Volume 2.4835771440171E+23
Height 60437762.447921