128690655 (number)

128690655 is an odd 9-digits composite number following 128690654 and preceding 128690656. In scientific notation, it is written as 1.28690655 × 10^8. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 68475168 positive integers (up to 128690655) that are relatively prime to 128690655.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred ninety thousand six hundred fifty-five

Notation

Scientific notation 1.28690655 × 10^8
Engineering notation 1.28690655 × 10^6

Prime Factorization of 128690655

Prime Factorization 3 × 5 × 439 × 19543

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128690655
Product of the distinct prime numbers

The prime factorization of 128690655 is 3 × 5 × 439 × 19543. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 70, 2, 400, 14, 3956, 3108, 55518, 55476, 520671, 260063, 6427557, 335021, 16085409, 88608415, 364367029, 468326492, 4093383200, 954223498

Basic calculations (n = 128690655)

Multiplication

n×y
n×2 257381310
n×3 386071965
n×4 514762620
n×5 643453275

Division

n÷y
n÷2 64345327.5
n÷3 42896885
n÷3 32172663.75
n÷5 25738131

Exponentiation

ny
n2 16561284684329025
n3 2.1312825736678E+24
n4 2.7427615039539E+32
n5 3.5296777445261E+40

Nth Root

y√n
2√n 11344.190363353
3√n 504.87322243195
4√n 106.50910929753
5√n 41.870621012508

Divisors of 128690655

1, 3, 5, 15, 439, 1317, 2195, 6585, 19543, 58629, 97715, 293145, 8579377, 25738131, 42896885, 128690655

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 -128690654
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 128690655 can be divided by 16 positive divisors. The sum of these divisors (counting 128690655) is 1, the average is 0.0625.

Base conversion 128690655

Base System Value
2 Binary 111101010111010100111011111
3 Ternary 22222011011101120
4 Quaternary 13222322213133
5 Quinary 230421100110
6 Senary 20434142023
8 Octal 752724737
10 Decimal 128690655
12 Duodecimal 37121913
16 Hexadecimal 7aba9df
20 Vigesimal 20466cf
36 Base36 24macf

Cryptographic Hash Functions

md5 f59f6684bccbf07aaffaf5ab08187ee5
sha1 f2547c831a74abcc9c403d34edfce28faf58a829
sha256 1920638930f377f779f91070ab8b0139b636cecb78f311e6ba98f7606799a815
sha512 55e4b13891db2c51b0ebd17e07541966e66eebda9f7b51f328fc340e23741a33c6e6d1d5ccc58d41a62a133932b20e485ba1cf045421b34c922d70b40da51a47
ripemd-160 043cfa5e2e7a03163318767df90a438910dee028

128690655 as geometric shapes

Circle

Radius = n
Diameter 257381310
Circumference 808587232.66732
Area 5.2028810298297E+16

Sphere

Radius = n
Volume 8.9274955682115E+24
Surface area 2.0811524119319E+17
Circumference 808587232.66732

Square

Length = n
Perimeter 514762620
Area 16561284684329025
Diagonal 181996069.65168

Cube

Length = n
Surface area 99367708105974150
Volume 2.1312825736678E+24
Space diagonal 222898752.91932

Equilateral Triangle

Length = n
Perimeter 386071965
Area 7.1712466279675E+15
Altitude 111449376.45966

Triangular Pyramid

Length = n
Surface area 7.1712466279675E+15
Volume 2.5117406007753E+23
Height 60665356.550559