128540986 (number)

128540986 is an even 9-digits composite number following 128540985 and preceding 128540987. In scientific notation, it is written as 1.28540986 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 53745120 positive integers (up to 128540986) that are relatively prime to 128540986.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred forty thousand nine hundred eighty-six

Notation

Scientific notation 1.28540986 × 10^8
Engineering notation 1.28540986 × 10^6

Prime Factorization of 128540986

Prime Factorization 2 × 7 × 41 × 223939

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128540986
Product of the distinct prime numbers

The prime factorization of 128540986 is 2 × 7 × 41 × 223939. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 34, 61, 554, 217, 7804, 1994, 32382, 73494, 298558, 946176, 4446958, 1313262, 80271092, 17618756, 767220552, 596028613, 9540668775, 143993140

Basic calculations (n = 128540986)

Multiplication

n×y
n×2 257081972
n×3 385622958
n×4 514163944
n×5 642704930

Division

n÷y
n÷2 64270493
n÷3 42846995.333333
n÷3 32135246.5
n÷5 25708197.2

Exponentiation

ny
n2 16522785081852196
n3 2.1238550858874E+24
n4 2.7300242686108E+32
n5 3.5092001129116E+40

Nth Root

y√n
2√n 11337.591719585
3√n 504.67742167441
4√n 106.47812789294
5√n 41.860877257095

Divisors of 128540986

1, 2, 7, 14, 41, 82, 287, 574, 223939, 447878, 1567573, 3135146, 9181499, 18362998, 64270493, 128540986

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 -128540985
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 128540986 can be divided by 16 positive divisors. The sum of these divisors (counting 128540986) is 1, the average is 0.0625.

Base conversion 128540986

Base System Value
2 Binary 111101010010110000100111010
3 Ternary 22221212120002021
4 Quaternary 13222112010322
5 Quinary 230401302421
6 Senary 20431025054
8 Octal 752260472
10 Decimal 128540986
12 Duodecimal 3706b18a
16 Hexadecimal 7a9613a
20 Vigesimal 2037c96
36 Base36 24j2uy

Cryptographic Hash Functions

md5 e4581a8e8299c36b01c7fb3c977ac884
sha1 fea6b5eceae5d78e05daab39cea764f9def7f2e9
sha256 f6daf946f41cd839f4b54103ca73899ba6da00a7c3d9cf9846b850ade41928c5
sha512 6bf162fc1c23ae96471d9ec935bf7ed38a48880a5bf3917d855bedcd14661fc6d4795390c228d7a15c3da0e1746fc03576873a9c6694422a2cf31cd51760bdc2
ripemd-160 6514a268e426611066701258d1a3e42bd37c8402

128540986 as geometric shapes

Circle

Radius = n
Diameter 257081972
Circumference 807646834.60558
Area 5.190786022999E+16

Sphere

Radius = n
Volume 8.8963833801508E+24
Surface area 2.0763144091996E+17
Circumference 807646834.60558

Square

Length = n
Perimeter 514163944
Area 16522785081852196
Diagonal 181784405.72201

Cube

Length = n
Surface area 99136710491113176
Volume 2.1238550858874E+24
Space diagonal 222639518.607

Equilateral Triangle

Length = n
Perimeter 385622958
Area 7.1545758110773E+15
Altitude 111319759.3035

Triangular Pyramid

Length = n
Surface area 7.1545758110773E+15
Volume 2.5029872224808E+23
Height 60594801.907337