20809904 (number)

20809904 is an even 8-digits composite number following 20809903 and preceding 20809905. In scientific notation, it is written as 2.0809904 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 20 positive divisors. There are 9792768 positive integers (up to 20809904) that are relatively prime to 20809904.

Interesting facts

Basic properties

Name

Name twenty million eight hundred nine thousand nine hundred four

Notation

Scientific notation 2.0809904 × 10^7
Engineering notation 2.0809904 × 10^6

Prime Factorization of 20809904

Prime Factorization 2 × 2 × 2 × 2 × 17 × 76507

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2601238
Product of the distinct prime numbers

The prime factorization of 20809904 is 2 × 2 × 2 × 2 × 17 × 76507. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 8, 86, 22, 915, 935, 9828, 8725, 76928, 25207, 197759, 913190, 7318980, 2250676, 84290129, 61901298, 63111074, 347087278, 3140016011, 5884593373

Basic calculations (n = 20809904)

Multiplication

n×y
n×2 41619808
n×3 62429712
n×4 83239616
n×5 104049520

Division

n÷y
n÷2 10404952
n÷3 6936634.6666667
n÷3 5202476
n÷5 4161980.8

Exponentiation

ny
n2 433052104489216
n3 9.0117727214186E+21
n4 1.8753412520254E+29
n5 3.9025671421888E+36

Nth Root

y√n
2√n 4561.7873690035
3√n 275.05741611067
4√n 67.541005093228
5√n 29.08399192194

Divisors of 20809904

1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76507, 153014, 306028, 612056, 1224112, 1300619, 2601238, 5202476, 10404952, 20809904

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20809903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20809904 can be divided by 20 positive divisors. The sum of these divisors (counting 20809904) is 1, the average is 0.05.

Base conversion 20809904

Base System Value
2 Binary 1001111011000100010110000
3 Ternary 1110011020211012
4 Quaternary 1033120202300
5 Quinary 20311404104
6 Senary 2022010052
8 Octal 117304260
10 Decimal 20809904
12 Duodecimal 6b76928
16 Hexadecimal 13d88b0
20 Vigesimal 6a14f4
36 Base36 ce10w

Cryptographic Hash Functions

md5 d0fcb58f9b85f66517e04b153da6d7bb
sha1 490512153e5b6603999e4a37fd6977b1994cc28d
sha256 997392bfac00bf391b77bea925a8466159000bf50e2054fb7dca86c441aa7bd5
sha512 7111bb0f2abd29737ca4ce01600cbd1b49cbe09c17252e24036491b7ca2fc4a770e7411959a4b2f066de54f21290cbdf959bdfdede30093cfcbc08fc448724d6
ripemd-160 2272d303022fac18053f3f0314705c37085a10c5

20809904 as geometric shapes

Circle

Radius = n
Diameter 41619808
Circumference 130752483.05662
Area 1.3604733100849E+15

Sphere

Radius = n
Volume 3.7748425303239E+22
Surface area 5.4418932403397E+15
Circumference 130752483.05662

Square

Length = n
Perimeter 83239616
Area 433052104489216
Diagonal 29429648.468482

Cube

Length = n
Surface area 2598312626935296
Volume 9.0117727214186E+21
Space diagonal 36043811.028631

Equilateral Triangle

Length = n
Perimeter 62429712
Area 1.8751706182499E+14
Altitude 18021905.514315

Triangular Pyramid

Length = n
Surface area 1.8751706182499E+14
Volume 1.0620476003045E+21
Height 9809882.8228274