128211728 (number)

128211728 is an even 9-digits composite number following 128211727 and preceding 128211729. In scientific notation, it is written as 1.28211728 × 10^8. The sum of its digits is 32. It has a total of 5 prime factors and 10 positive divisors. There are 64105856 positive integers (up to 128211728) that are relatively prime to 128211728.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred eleven thousand seven hundred twenty-eight

Notation

Scientific notation 1.28211728 × 10^8
Engineering notation 1.28211728 × 10^6

Prime Factorization of 128211728

Prime Factorization 2 × 2 × 2 × 2 × 8013233

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 16026466
Product of the distinct prime numbers

The prime factorization of 128211728 is 2 × 2 × 2 × 2 × 8013233. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 4, 91, 69, 932, 168, 1178, 235, 15478, 25687, 159182, 680546, 1676396, 3113718, 98442559, 21724939, 527543186, 56369077, 5523931396, 7895378127

Basic calculations (n = 128211728)

Multiplication

n×y
n×2 256423456
n×3 384635184
n×4 512846912
n×5 641058640

Division

n÷y
n÷2 64105864
n÷3 42737242.666667
n÷3 32052932
n÷5 25642345.6

Exponentiation

ny
n2 16438247196745984
n3 2.107576078386E+24
n4 2.7021597090133E+32
n5 3.4644856562457E+40

Nth Root

y√n
2√n 11323.061776746
3√n 504.24614247249
4√n 106.40987631205
5√n 41.839409905709

Divisors of 128211728

1, 2, 4, 8, 16, 8013233, 16026466, 32052932, 64105864, 128211728

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128211727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128211728 can be divided by 10 positive divisors. The sum of these divisors (counting 128211728) is 1, the average is 0.1.

Base conversion 128211728

Base System Value
2 Binary 111101001000101101100010000
3 Ternary 22221020211102112
4 Quaternary 13221011230100
5 Quinary 230310233403
6 Senary 20420004452
8 Octal 751055420
10 Decimal 128211728
12 Duodecimal 36b30728
16 Hexadecimal 7a45b10
20 Vigesimal 2016968
36 Base36 24c0sw

Cryptographic Hash Functions

md5 464f8d801bf8640818784d021fe7a975
sha1 87ce5e239c18764d1d6639910f9518e893f06db2
sha256 54b7964731091f9a1bcee0facb09ccaa19569cfdb9a383f180183854636416ce
sha512 a1893ba21e14d6973b81cee36bd780b475d0d0062b11cda39a70cb9546ca156d54dc9baf5a4ac2298212d9ab4f2f60b1d4a2399fa0eb6dcbb499b4a28ebbd2bc
ripemd-160 a36b43a267d765bc67b9f968b131f82c4d20df6d

128211728 as geometric shapes

Circle

Radius = n
Diameter 256423456
Circumference 805578045.57771
Area 5.164227663119E+16

Sphere

Radius = n
Volume 8.8281940329852E+24
Surface area 2.0656910652476E+17
Circumference 805578045.57771

Square

Length = n
Perimeter 512846912
Area 16438247196745984
Diagonal 181318764.59289

Cube

Length = n
Surface area 98629483180475904
Volume 2.107576078386E+24
Space diagonal 222069227.0222

Equilateral Triangle

Length = n
Perimeter 384635184
Area 7.1179698330352E+15
Altitude 111034613.5111

Triangular Pyramid

Length = n
Surface area 7.1179698330352E+15
Volume 2.4838022281554E+23
Height 60439588.19763