20402805 (number)

20402805 is an odd 8-digits composite number following 20402804 and preceding 20402806. In scientific notation, it is written as 2.0402805 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors. There are 9461760 positive integers (up to 20402805) that are relatively prime to 20402805.

Interesting facts

Basic properties

Name

Name twenty million four hundred two thousand eight hundred five

Notation

Scientific notation 2.0402805 × 10^7
Engineering notation 2.0402805 × 10^6

Prime Factorization of 20402805

Prime Factorization 87 × 5 × 17 × 31 × 89

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20402805
Product of the distinct prime numbers

The prime factorization of 20402805 is 87 × 5 × 17 × 31 × 89. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 81, 88, 832, 407, 8048, 387, 87019, 40032, 675606, 470366, 550469, 714355, 11544058, 37795597, 212114243, 813929304, 7493111798, 6849811761

Basic calculations (n = 20402805)

Multiplication

n×y
n×2 40805610
n×3 61208415
n×4 81611220
n×5 102014025

Division

n÷y
n÷2 10201402.5
n÷3 6800935
n÷3 5100701.25
n÷5 4080561

Exponentiation

ny
n2 416274451868025
n3 8.4931664679452E+21
n4 1.7328441927802E+29
n5 3.5354882160678E+36

Nth Root

y√n
2√n 4516.9464243004
3√n 273.25196450991
4√n 67.208231819476
5√n 28.9692982998

Divisors of 20402805

1, 5, 17, 31, 85, 87, 89, 155, 435, 445, 527, 1479, 1513, 2635, 2697, 2759, 7395, 7565, 7743, 13485, 13795, 38715, 45849, 46903, 131631, 229245, 234515, 240033, 658155, 1200165, 4080561, 20402805

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 -20402804
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 20402805 can be divided by 32 positive divisors. The sum of these divisors (counting 20402805) is 1, the average is 0.03125.

Base conversion 20402805

Base System Value
2 Binary 1001101110101001001110101
3 Ternary 1102101120101110
4 Quaternary 1031311021311
5 Quinary 20210342210
6 Senary 2005145233
8 Octal 115651165
10 Decimal 20402805
12 Duodecimal 69bb219
16 Hexadecimal 1375275
20 Vigesimal 67a705
36 Base36 c5awl

Cryptographic Hash Functions

md5 2f67c129b72c347626c7f6319c4372eb
sha1 4fcfa053d48496dd48ca6c4507397923a2357cdc
sha256 da8ecad89eca3515d88e4b47bae7cf6f7dd9d3d0dedbec5b5a670d197ddc7366
sha512 ce7df0e745c05fc7dbf5c794cf51cd6534475976a536e698f08f4e0ea1a97a68d3d6ed09dc8e0343e9aaa8fee9325b9fbbff3a671f7350091db847c1d4f35d1f
ripemd-160 6641058f8e6d12b7095ce052bb699a36fdc3dc44

20402805 as geometric shapes

Circle

Radius = n
Diameter 40805610
Circumference 128194604.60125
Area 1.3077647598657E+15

Sphere

Radius = n
Volume 3.5576092508549E+22
Surface area 5.2310590394628E+15
Circumference 128194604.60125

Square

Length = n
Perimeter 81611220
Area 416274451868025
Diagonal 28853923.541454

Cube

Length = n
Surface area 2497646711208150
Volume 8.4931664679452E+21
Space diagonal 35338694.87692

Equilateral Triangle

Length = n
Perimeter 61208415
Area 1.8025212513208E+14
Altitude 17669347.43846

Triangular Pyramid

Length = n
Surface area 1.8025212513208E+14
Volume 1.000929267205E+21
Height 9617974.5138179