128485720 (number)

128485720 is an even 9-digits composite number following 128485719 and preceding 128485721. In scientific notation, it is written as 1.28485720 × 10^8. The sum of its digits is 37. It has a total of 7 prime factors and 64 positive divisors. There are 45628800 positive integers (up to 128485720) that are relatively prime to 128485720.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred eighty-five thousand seven hundred twenty

Notation

Scientific notation 1.28485720 × 10^8
Engineering notation 1.28485720 × 10^6

Prime Factorization of 128485720

Prime Factorization 2 × 2 × 2 × 5 × 11 × 43 × 6791

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 32121430
Product of the distinct prime numbers

The prime factorization of 128485720 is 2 × 2 × 2 × 5 × 11 × 43 × 6791. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 9, 69, 7, 215, 567, 7670, 6650, 82213, 47572, 901956, 828851, 4770309, 5087183, 35389366, 66502434, 988623336, 58455486, 2313680607, 9597472624

Basic calculations (n = 128485720)

Multiplication

n×y
n×2 256971440
n×3 385457160
n×4 513942880
n×5 642428600

Division

n÷y
n÷2 64242860
n÷3 42828573.333333
n÷3 32121430
n÷5 25697144

Exponentiation

ny
n2 16508580243918400
n3 2.1211168188176E+24
n4 2.7253322166989E+32
n5 3.5016627210176E+40

Nth Root

y√n
2√n 11335.154167456
3√n 504.60508287802
4√n 106.4666810202
5√n 41.857277033869

Divisors of 128485720

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 6791, 9460, 13582, 18920, 27164, 33955, 54328, 67910, 74701, 135820, 149402, 271640, 292013, 298804, 373505, 584026, 597608, 747010, 1168052, 1460065, 1494020, 2336104, 2920130, 2988040, 3212143, 5840260, 6424286, 11680520, 12848572, 16060715, 25697144, 32121430, 64242860, 128485720

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128485719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128485720 can be divided by 64 positive divisors. The sum of these divisors (counting 128485720) is 1, the average is 0.015625.

Base conversion 128485720

Base System Value
2 Binary 111101010001000100101011000
3 Ternary 22221202202021101
4 Quaternary 13222020211120
5 Quinary 230343020340
6 Senary 20425521144
8 Octal 752104530
10 Decimal 128485720
12 Duodecimal 370431b4
16 Hexadecimal 7a88958
20 Vigesimal 2030e60
36 Base36 24hw7s

Cryptographic Hash Functions

md5 2ca1b5d0f986a40225453a045fde780c
sha1 03cb2618d619e43667d576a7c5d63235a9bd3446
sha256 ad4fe82a5fd9140f2e56198c4109d086da78e706ee5fc9b9e1d139ff90028019
sha512 1ae1ced5ba37625f1a89c3a625622b84891f604a3b89fad520457a569b66c33a86d7370379e050fd6102bfbba7ad6b4a03ca585cdfd6a2a454378b419692f770
ripemd-160 ef568178208229dbc97d90a462e827e85e351263

128485720 as geometric shapes

Circle

Radius = n
Diameter 256971440
Circumference 807299588.08639
Area 5.1863234415492E+16

Sphere

Radius = n
Volume 8.884913353871E+24
Surface area 2.0745293766197E+17
Circumference 807299588.08639

Square

Length = n
Perimeter 513942880
Area 16508580243918400
Diagonal 181706247.79527

Cube

Length = n
Surface area 99051481463510400
Volume 2.1211168188176E+24
Space diagonal 222543795.08707

Equilateral Triangle

Length = n
Perimeter 385457160
Area 7.1484249358236E+15
Altitude 111271897.54353

Triangular Pyramid

Length = n
Surface area 7.1484249358236E+15
Volume 2.4997601437913E+23
Height 60568749.265091