128545809 (number)

128545809 is an odd 9-digits composite number following 128545808 and preceding 128545810. In scientific notation, it is written as 1.28545809 × 10^8. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 70761600 positive integers (up to 128545809) that are relatively prime to 128545809.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28545809 × 10^8
Engineering notation 1.28545809 × 10^6

Prime Factorization of 128545809

Prime Factorization 3 × 7 × 31 × 379 × 521

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 128545809
Product of the distinct prime numbers

The prime factorization of 128545809 is 3 × 7 × 31 × 379 × 521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 87, 52, 541, 879, 8284, 8673, 83044, 8466, 572134, 783011, 8009394, 7563568, 92440155, 61288884, 362533491, 144776813, 7030245665, 5894681841

Basic calculations (n = 128545809)

Multiplication

n×y
n×2 257091618
n×3 385637427
n×4 514183236
n×5 642729045

Division

n÷y
n÷2 64272904.5
n÷3 42848603
n÷3 32136452.25
n÷5 25709161.8

Exponentiation

ny
n2 16524025011464481
n3 2.1240941630349E+24
n4 2.730434025795E+32
n5 3.5098585076695E+40

Nth Root

y√n
2√n 11337.804417082
3√n 504.68373361386
4√n 106.47912667317
5√n 41.861191385666

Divisors of 128545809

1, 3, 7, 21, 31, 93, 217, 379, 521, 651, 1137, 1563, 2653, 3647, 7959, 10941, 11749, 16151, 35247, 48453, 82243, 113057, 197459, 246729, 339171, 592377, 1382213, 4146639, 6121229, 18363687, 42848603, 128545809

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128545808
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128545809 can be divided by 32 positive divisors. The sum of these divisors (counting 128545809) is 1, the average is 0.03125.

Base conversion 128545809

Base System Value
2 Binary 111101010010111010000010001
3 Ternary 22221212210200220
4 Quaternary 13222113100101
5 Quinary 230401431214
6 Senary 20431103253
8 Octal 752272021
10 Decimal 128545809
12 Duodecimal 37071b29
16 Hexadecimal 7a97411
20 Vigesimal 20384a9
36 Base36 24j6kx

Cryptographic Hash Functions

md5 6b6a5951d1ee97e73f806574c0fd7b18
sha1 070ce0fd6e42044a0b1826f3d83c028f54b64c22
sha256 8a95ee72cd8255abd348affd3ad591e53f3de82c93f2eb8f5131d702bc10097e
sha512 ae2cba939a167b321ef1746c61a700bc9b626e539c04bc7d963486d09dc18b21008e19f55ea3fa2d366da9cdce39adb3a1750d832c72f44d90f8bd36a1f89a66
ripemd-160 3fec00b3498ef2a929f665cc0e791bc400ca4cef

128545809 as geometric shapes

Circle

Radius = n
Diameter 257091618
Circumference 807677138.40831
Area 5.1911755583751E+16

Sphere

Radius = n
Volume 8.8973848241647E+24
Surface area 2.07647022335E+17
Circumference 807677138.40831

Square

Length = n
Perimeter 514183236
Area 16524025011464481
Diagonal 181791226.47402

Cube

Length = n
Surface area 99144150068786886
Volume 2.1240941630349E+24
Space diagonal 222647872.28804

Equilateral Triangle

Length = n
Perimeter 385637427
Area 7.1551127163488E+15
Altitude 111323936.14402

Triangular Pyramid

Length = n
Surface area 7.1551127163488E+15
Volume 2.5032689776013E+23
Height 60597075.49134