128995730 (number)

128995730 is an even 9-digits composite number following 128995729 and preceding 128995731. In scientific notation, it is written as 1.28995730 × 10^8. The sum of its digits is 44. It has a total of 5 prime factors and 32 positive divisors. There are 48300736 positive integers (up to 128995730) that are relatively prime to 128995730.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred ninety-five thousand seven hundred thirty

Notation

Scientific notation 1.28995730 × 10^8
Engineering notation 1.28995730 × 10^6

Prime Factorization of 128995730

Prime Factorization 2 × 23 × 5 × 47 × 11933

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 128995730
Product of the distinct prime numbers

The prime factorization of 128995730 is 2 × 23 × 5 × 47 × 11933. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 4, 52, 85, 836, 750, 9720, 8721, 58351, 54560, 540492, 952618, 2609790, 7032325, 90039326, 87609934, 297128489, 953607162, 290367462, 9252471918

Basic calculations (n = 128995730)

Multiplication

n×y
n×2 257991460
n×3 386987190
n×4 515982920
n×5 644978650

Division

n÷y
n÷2 64497865
n÷3 42998576.666667
n÷3 32248932.5
n÷5 25799146

Exponentiation

ny
n2 16639898358232900
n3 2.1464758358461E+24
n4 2.7688621737232E+32
n5 3.5717139736881E+40

Nth Root

y√n
2√n 11357.628713776
3√n 505.27185963442
4√n 106.57217607695
5√n 41.890453974512

Divisors of 128995730

1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 2162, 5405, 10810, 11933, 23866, 59665, 119330, 274459, 548918, 560851, 1121702, 1372295, 2744590, 2804255, 5608510, 12899573, 25799146, 64497865, 128995730

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128995729
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128995730 can be divided by 32 positive divisors. The sum of these divisors (counting 128995730) is 1, the average is 0.03125.

Base conversion 128995730

Base System Value
2 Binary 111101100000101000110010010
3 Ternary 22222201122212122
4 Quaternary 13230011012102
5 Quinary 231010330410
6 Senary 20444454242
8 Octal 754050622
10 Decimal 128995730
12 Duodecimal 3724a382
16 Hexadecimal 7b05192
20 Vigesimal 206496a
36 Base36 24stqq

Cryptographic Hash Functions

md5 d3f1ce0929473a933802bdae7fe00eba
sha1 c2e436e44679e3ed45e79b92b22a2e975f9a2e96
sha256 d92d9a2b1f985109d40c3b37d766f76a2dedb63d4341340e7dc317360b64b97f
sha512 04b0c703e62f8895919ff3fd32b3eb3e33d525e8db3491c4d9ab7c744e5117a2a5ddef23820bc47e181034b7d8fc59c5115c2802db86fbda0acd9638c3b85455
ripemd-160 de294bc9eb5a89a457039e40a76aae743399e623

128995730 as geometric shapes

Circle

Radius = n
Diameter 257991460
Circumference 810504075.4249
Area 5.2275782438705E+16

Sphere

Radius = n
Volume 8.9911369560026E+24
Surface area 2.0910312975482E+17
Circumference 810504075.4249

Square

Length = n
Perimeter 515982920
Area 16639898358232900
Diagonal 182427510.85422

Cube

Length = n
Surface area 99839390149397400
Volume 2.1464758358461E+24
Space diagonal 223427158.31944

Equilateral Triangle

Length = n
Perimeter 386987190
Area 7.2052873473103E+15
Altitude 111713579.15972

Triangular Pyramid

Length = n
Surface area 7.2052873473103E+15
Volume 2.5296460319663E+23
Height 60809170.284739