128217820 (number)

128217820 is an even 9-digits composite number following 128217819 and preceding 128217821. In scientific notation, it is written as 1.28217820 × 10^8. The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors. There are 51287120 positive integers (up to 128217820) that are relatively prime to 128217820.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred seventeen thousand eight hundred twenty

Notation

Scientific notation 1.28217820 × 10^8
Engineering notation 1.28217820 × 10^6

Prime Factorization of 128217820

Prime Factorization 2 × 2 × 5 × 6410891

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 64108910
Product of the distinct prime numbers

The prime factorization of 128217820 is 2 × 2 × 5 × 6410891. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128217820)

Multiplication

n×y
n×2 256435640
n×3 384653460
n×4 512871280
n×5 641089100

Division

n÷y
n÷2 64108910
n÷3 42739273.333333
n÷3 32054455
n÷5 25643564

Exponentiation

ny
n2 16439809365552400
n3 2.1078765180667E+24
n4 2.702673319757E+32
n5 3.4653088123141E+40

Nth Root

y√n
2√n 11323.330782062
3√n 504.25412879037
4√n 106.41114030994
5√n 41.839807499354

Divisors of 128217820

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128217819
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128217820 can be divided by 12 positive divisors. The sum of these divisors (counting 128217820) is 1, the average is 0.083333333333333.

Base conversion 128217820

Base System Value
2 Binary 111101001000111001011011100
3 Ternary 22221021010210011
4 Quaternary 13221013023130
5 Quinary 230310432240
6 Senary 20420053004
8 Octal 751071334
10 Decimal 128217820
12 Duodecimal 36b34164
16 Hexadecimal 7a472dc
20 Vigesimal 20174b0
36 Base36 24c5i4

Cryptographic Hash Functions

md5 a90acf3909632016a9e901d7b3c2372c
sha1 4daf6d065db0716965213840dd5705a3c7f7774f
sha256 20c858fffc4d1832cf3f240d6c954b738c1b63ea189b68f007d6a10ea7698547
sha512 cdc31cb214d5f129843b8d1d20ac8b9a626e0ebcf9a87b0a84880080f328d8ff37aeab692063e6327b61d8943dc122d475f188ece1cf03ce44ca486a4024ab10
ripemd-160 e2c44eea39daf7da326b669adeb6b30b14c88d78

128217820 as geometric shapes

Circle

Radius = n
Diameter 256435640
Circumference 805616322.7426
Area 5.1647184329236E+16

Sphere

Radius = n
Volume 8.8294525117771E+24
Surface area 2.0658873731694E+17
Circumference 805616322.7426

Square

Length = n
Perimeter 512871280
Area 16439809365552400
Diagonal 181327379.98191

Cube

Length = n
Surface area 98638856193314400
Volume 2.1078765180667E+24
Space diagonal 222079778.67572

Equilateral Triangle

Length = n
Perimeter 384653460
Area 7.1186462719709E+15
Altitude 111039889.33786

Triangular Pyramid

Length = n
Surface area 7.1186462719709E+15
Volume 2.4841562997148E+23
Height 60442459.993971