128420900 (number)

128420900 is an even 9-digits composite number following 128420899 and preceding 128420901. In scientific notation, it is written as 1.28420900 × 10^8. The sum of its digits is 26. It has a total of 5 prime factors and 18 positive divisors. There are 51368320 positive integers (up to 128420900) that are relatively prime to 128420900.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28420900 × 10^8
Engineering notation 1.28420900 × 10^6

Prime Factorization of 128420900

Prime Factorization 2 × 2 × 5 × 5 × 1284209

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 12842090
Product of the distinct prime numbers

The prime factorization of 128420900 is 2 × 2 × 5 × 5 × 1284209. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 7, 50, 67, 21, 560, 6709, 6240, 67634, 63448, 446193, 640624, 3215691, 9924491, 24083386, 46436852, 46145294, 183468479, 90439888, 4436937260

Basic calculations (n = 128420900)

Multiplication

n×y
n×2 256841800
n×3 385262700
n×4 513683600
n×5 642104500

Division

n÷y
n÷2 64210450
n÷3 42806966.666667
n÷3 32105225
n÷5 25684180

Exponentiation

ny
n2 16491927556810000
n3 2.1179081795803E+24
n4 2.7198367453907E+32
n5 3.4928388269614E+40

Nth Root

y√n
2√n 11332.294560238
3√n 504.52021221845
4√n 106.45325058559
5√n 41.853052850239

Divisors of 128420900

1, 2, 4, 5, 10, 20, 25, 50, 100, 1284209, 2568418, 5136836, 6421045, 12842090, 25684180, 32105225, 64210450, 128420900

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128420899
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128420900 can be divided by 18 positive divisors. The sum of these divisors (counting 128420900) is 1, the average is 0.055555555555556.

Base conversion 128420900

Base System Value
2 Binary 111101001111000110000100100
3 Ternary 22221122110100122
4 Quaternary 13221320300210
5 Quinary 230333432100
6 Senary 20424301112
8 Octal 751706044
10 Decimal 128420900
12 Duodecimal 37011798
16 Hexadecimal 7a78c24
20 Vigesimal 202cc50
36 Base36 24gi78

Cryptographic Hash Functions

md5 d76469a9281af5840f7f192c080fdee3
sha1 95724be62c0a9b3d2e02bbfc64007c336ade0ca5
sha256 437a9ca4e44b9648a868a3d15cd170e82063e596c62552c4dd904c08be782eed
sha512 b5aa8c575bbd1c2a88a1ecf1facd22d48184182b6243a8eb59ddf8e3a7ea123445bf54ebfd7b775277aadf0bc488d15817db38e1477afd728a9e6872e3ce97cf
ripemd-160 28c5c3fa5e8947972b7e15dec529bbbd6b033248

128420900 as geometric shapes

Circle

Radius = n
Diameter 256841800
Circumference 806892312.01478
Area 5.1810918456009E+16

Sphere

Radius = n
Volume 8.8714730372631E+24
Surface area 2.0724367382404E+17
Circumference 806892312.01478

Square

Length = n
Perimeter 513683600
Area 16491927556810000
Diagonal 181614578.47216

Cube

Length = n
Surface area 98951565340860000
Volume 2.1179081795803E+24
Space diagonal 222431523.55372

Equilateral Triangle

Length = n
Perimeter 385262700
Area 7.141214110785E+15
Altitude 111215761.77686

Triangular Pyramid

Length = n
Surface area 7.141214110785E+15
Volume 2.4959787261862E+23
Height 60538192.824053