20128865 (number)

20128865 is an odd 8-digits composite number following 20128864 and preceding 20128866. In scientific notation, it is written as 2.0128865 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 15975792 positive integers (up to 20128865) that are relatively prime to 20128865.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-eight thousand eight hundred sixty-five

Notation

Scientific notation 2.0128865 × 10^7
Engineering notation 2.0128865 × 10^6

Prime Factorization of 20128865

Prime Factorization 5 × 127 × 31699

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20128865
Product of the distinct prime numbers

The prime factorization of 20128865 is 5 × 127 × 31699. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 2, 13, 80, 856, 203, 5632, 9884, 65253, 17056, 47311, 381566, 734633, 1950760, 96094148, 30518793, 513894143, 839363770, 3917622449, 2206597908

Basic calculations (n = 20128865)

Multiplication

n×y
n×2 40257730
n×3 60386595
n×4 80515460
n×5 100644325

Division

n÷y
n÷2 10064432.5
n÷3 6709621.6666667
n÷3 5032216.25
n÷5 4025773

Exponentiation

ny
n2 405171206188225
n3 8.1556365112499E+21
n4 1.6416370632402E+29
n5 3.3044290824959E+36

Nth Root

y√n
2√n 4486.5203666093
3√n 272.02350305126
4√n 66.981492717088
5√n 28.891085360649

Divisors of 20128865

1, 5, 127, 635, 31699, 158495, 4025773, 20128865

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20128864
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20128865 can be divided by 8 positive divisors. The sum of these divisors (counting 20128865) is 1, the average is 0.125.

Base conversion 20128865

Base System Value
2 Binary 1001100110010010001100001
3 Ternary 1101212122121112
4 Quaternary 1030302101201
5 Quinary 20123110430
6 Senary 1555233105
8 Octal 114622141
10 Decimal 20128865
12 Duodecimal 68a8795
16 Hexadecimal 1332461
20 Vigesimal 65g235
36 Base36 bzfj5

Cryptographic Hash Functions

md5 9b5c6b457d28a8191b00e36cd532d17c
sha1 a55ae4a459e8ff9f6b5075a632821eb1126f0067
sha256 0b078bc2c794de90f61131bb58fef965e12a3520b822401ce1cdc6a9175b0a5d
sha512 b0c230f7171d704593679a733a5c3542fd96a5381e232cec9ff1c4c5ee683c54c9d40934163e2544c41883ecee44f046e4c285c4791770d2bd36a4d7f973b898
ripemd-160 49275b871aa81fc63f84eeb2c650464eb5f1dfde

20128865 as geometric shapes

Circle

Radius = n
Diameter 40257730
Circumference 126473388.8182
Area 1.272882884807E+15

Sphere

Radius = n
Volume 3.4162250332122E+22
Surface area 5.0915315392282E+15
Circumference 126473388.8182

Square

Length = n
Perimeter 80515460
Area 405171206188225
Diagonal 28466513.878177

Cube

Length = n
Surface area 2431027237129350
Volume 8.1556365112499E+21
Space diagonal 34864216.878695

Equilateral Triangle

Length = n
Perimeter 60386595
Area 1.7544427872049E+14
Altitude 17432108.439347

Triangular Pyramid

Length = n
Surface area 1.7544427872049E+14
Volume 9.6115098033291E+20
Height 9488837.9593924