128425921 (number)

128425921 is an odd 9-digits composite number following 128425920 and preceding 128425922. In scientific notation, it is written as 1.28425921 × 10^8. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 112307472 positive integers (up to 128425921) that are relatively prime to 128425921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28425921 × 10^8
Engineering notation 1.28425921 × 10^6

Prime Factorization of 128425921

Prime Factorization 19 × 13 × 519943

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128425921
Product of the distinct prime numbers

The prime factorization of 128425921 is 19 × 13 × 519943. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 67, 34, 155, 158, 7026, 7538, 35053, 76498, 580604, 592431, 684159, 3714266, 41612323, 15968355, 272090914, 513823820, 6382083037, 4930894283

Basic calculations (n = 128425921)

Multiplication

n×y
n×2 256851842
n×3 385277763
n×4 513703684
n×5 642129605

Division

n÷y
n÷2 64212960.5
n÷3 42808640.333333
n÷3 32106480.25
n÷5 25685184.2

Exponentiation

ny
n2 16493217184698241
n3 2.1181566071979E+24
n4 2.7202621310163E+32
n5 3.4935216953719E+40

Nth Root

y√n
2√n 11332.516093084
3√n 504.52678737605
4√n 106.45429109756
5√n 41.85338011923

Divisors of 128425921

1, 13, 19, 247, 519943, 6759259, 9878917, 128425921

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128425920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128425921 can be divided by 8 positive divisors. The sum of these divisors (counting 128425921) is 1, the average is 0.125.

Base conversion 128425921

Base System Value
2 Binary 111101001111001111111000001
3 Ternary 22221122201020121
4 Quaternary 13221321333001
5 Quinary 230334112141
6 Senary 20424340241
8 Octal 751717701
10 Decimal 128425921
12 Duodecimal 37014681
16 Hexadecimal 7a79fc1
20 Vigesimal 202d4g1
36 Base36 24gm2p

Cryptographic Hash Functions

md5 97693803e88af20d54014d3bcde7000e
sha1 38b05bfbe54df55f376a7882ffd792dbdeb6c4d9
sha256 55f2b49a61d4765023ece0682f4c1e2b74868e5f2779680e667ec5b1949513f2
sha512 7288f19969f1dfa929efb710cbe088cd54d595495b7b2b842a60f028268777e37211c3f82d4e0ee1f0592467486464dd6503acdc2c6d203496401d93b22c9c9b
ripemd-160 90db4bce11eb165a6807a4b8b3160e7863ac5688

128425921 as geometric shapes

Circle

Radius = n
Diameter 256851842
Circumference 806923859.88821
Area 5.1814969941509E+16

Sphere

Radius = n
Volume 8.8725136484341E+24
Surface area 2.0725987976604E+17
Circumference 806923859.88821

Square

Length = n
Perimeter 513703684
Area 16493217184698241
Diagonal 181621679.23846

Cube

Length = n
Surface area 98959303108189446
Volume 2.1181566071979E+24
Space diagonal 222440220.18083

Equilateral Triangle

Length = n
Perimeter 385277763
Area 7.1417725360414E+15
Altitude 111220110.09041

Triangular Pyramid

Length = n
Surface area 7.1417725360414E+15
Volume 2.4962715009412E+23
Height 60540559.746152