128646918 (number)

128646918 is an even 9-digits composite number following 128646917 and preceding 128646919. In scientific notation, it is written as 1.28646918 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 42339024 positive integers (up to 128646918) that are relatively prime to 128646918.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred forty-six thousand nine hundred eighteen

Notation

Scientific notation 1.28646918 × 10^8
Engineering notation 1.28646918 × 10^6

Prime Factorization of 128646918

Prime Factorization 2 × 3 × 3 × 79 × 90469

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 42882306
Product of the distinct prime numbers

The prime factorization of 128646918 is 2 × 3 × 3 × 79 × 90469. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 3, 91, 13, 248, 929, 6699, 237, 82702, 89316, 260883, 539543, 5195762, 7619155, 67595374, 58871915, 211322250, 534921538, 6610688571, 9981426766

Basic calculations (n = 128646918)

Multiplication

n×y
n×2 257293836
n×3 385940754
n×4 514587672
n×5 643234590

Division

n÷y
n÷2 64323459
n÷3 42882306
n÷3 32161729.5
n÷5 25729383.6

Exponentiation

ny
n2 16550029510898724
n3 2.1291102893862E+24
n4 2.7390347681162E+32
n5 3.5236838121299E+40

Nth Root

y√n
2√n 11342.262472717
3√n 504.81602029304
4√n 106.50005855734
5√n 41.867774583051

Divisors of 128646918

1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422, 90469, 180938, 271407, 542814, 814221, 1628442, 7147051, 14294102, 21441153, 42882306, 64323459, 128646918

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128646917
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128646918 can be divided by 24 positive divisors. The sum of these divisors (counting 128646918) is 1, the average is 0.041666666666667.

Base conversion 128646918

Base System Value
2 Binary 111101010101111111100000110
3 Ternary 22222001221101200
4 Quaternary 13222233330012
5 Quinary 230413200133
6 Senary 20433203330
8 Octal 752577406
10 Decimal 128646918
12 Duodecimal 37100546
16 Hexadecimal 7aaff06
20 Vigesimal 2040h5i
36 Base36 24lcli

Cryptographic Hash Functions

md5 6126d340f4096e64414d0e3aa56c10b1
sha1 7217c178cc810ed7cfedb007880da1c39533aa27
sha256 b3f6e5275e1c870661ef2f2d25f1135bd4f4b06cc36ccdaabc58b9e55c90d7e9
sha512 0109308d61e6fc93c88894914fa6aea406c3d5b40382b407c5c7b81db6ea7dac1f40a20e9fce0e6be23306186e8410cf93d8791446e79a6ada570d55d8a00747
ripemd-160 56ec59d137a3b17d8b709fc3a00001d995c13030

128646918 as geometric shapes

Circle

Radius = n
Diameter 257293836
Circumference 808312424.99154
Area 5.1993451128134E+16

Sphere

Radius = n
Volume 8.9183963250907E+24
Surface area 2.0797380451253E+17
Circumference 808312424.99154

Square

Length = n
Perimeter 514587672
Area 16550029510898724
Diagonal 181934216.1931

Cube

Length = n
Surface area 99300177065392344
Volume 2.1291102893862E+24
Space diagonal 222822998.21315

Equilateral Triangle

Length = n
Perimeter 385940754
Area 7.1663729949102E+15
Altitude 111411499.10657

Triangular Pyramid

Length = n
Surface area 7.1663729949102E+15
Volume 2.5091805391984E+23
Height 60644738.731033