128840387 (number)

128840387 is an odd 9-digits composite number following 128840386 and preceding 128840388. In scientific notation, it is written as 1.28840387 × 10^8. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 112039200 positive integers (up to 128840387) that are relatively prime to 128840387.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million eight hundred forty thousand three hundred eighty-seven

Notation

Scientific notation 1.28840387 × 10^8
Engineering notation 1.28840387 × 10^6

Prime Factorization of 128840387

Prime Factorization 13 × 19 × 191 × 2731

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128840387
Product of the distinct prime numbers

The prime factorization of 128840387 is 13 × 19 × 191 × 2731. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128840387)

Multiplication

n×y
n×2 257680774
n×3 386521161
n×4 515361548
n×5 644201935

Division

n÷y
n÷2 64420193.5
n÷3 42946795.666667
n÷3 32210096.75
n÷5 25768077.4

Exponentiation

ny
n2 16599845322309769
n3 2.1387304954665E+24
n4 2.7555486472461E+32
n5 3.5502595410851E+40

Nth Root

y√n
2√n 11350.787946218
3√n 505.06895375803
4√n 106.54007671397
5√n 41.880359802146

Divisors of 128840387

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 -128840386
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 128840387 can be divided by 16 positive divisors. The sum of these divisors (counting 128840387) is 1, the average is 0.0625.

Base conversion 128840387

Base System Value
2 Binary 111101011011111001011000011
3 Ternary 22222102202210012
4 Quaternary 13223133023003
5 Quinary 230440343022
6 Senary 20441255135
8 Octal 753371303
10 Decimal 128840387
12 Duodecimal 371944ab
16 Hexadecimal 7adf2c3
20 Vigesimal 20550j7
36 Base36 24phvn

Cryptographic Hash Functions

md5 a64953ed43c0a3edf0784dca0222eb78
sha1 6c599d4e20da325cc84b77a4cd400b2a835503c0
sha256 b9c3c0f11631aa96bde20879fa995c226582dfbad21c0bc429ace5c93e6fb2cc
sha512 ce32643f05918337481d98a3cea857ecb2dc17d6fbd69d8b00096f6d968f26b7ba6a67a80fb742a75e9b2e8bebcd8fbf303b144ca3408bb3cfa9db904f5ccabe
ripemd-160 4d7c7008aeea59c3f8caf015fc63c2aa9dff2a65

128840387 as geometric shapes

Circle

Radius = n
Diameter 257680774
Circumference 809528026.56973
Area 5.2149952115295E+16

Sphere

Radius = n
Volume 8.9586933500881E+24
Surface area 2.0859980846118E+17
Circumference 809528026.56973

Square

Length = n
Perimeter 515361548
Area 16599845322309769
Diagonal 182207822.6768

Cube

Length = n
Surface area 99599071933858614
Volume 2.1387304954665E+24
Space diagonal 223158096.35084

Equilateral Triangle

Length = n
Perimeter 386521161
Area 7.1879438740063E+15
Altitude 111579048.17542

Triangular Pyramid

Length = n
Surface area 7.1879438740063E+15
Volume 2.5205180607914E+23
Height 60735940.892266