20804985 (number)

20804985 is an odd 8-digits composite number following 20804984 and preceding 20804986. In scientific notation, it is written as 2.0804985 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 11095920 positive integers (up to 20804985) that are relatively prime to 20804985.

Interesting facts

Basic properties

Name

Name twenty million eight hundred four thousand nine hundred eighty-five

Notation

Scientific notation 2.0804985 × 10^7
Engineering notation 2.0804985 × 10^6

Prime Factorization of 20804985

Prime Factorization 3 × 9 × 5 × 154111

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20804985
Product of the distinct prime numbers

The prime factorization of 20804985 is 3 × 9 × 5 × 154111. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 7, 89, 87, 74, 895, 7150, 5795, 30049, 4101, 665115, 887126, 8571689, 3656940, 8005642, 54849676, 7404341, 216419798, 1830834212, 917382233

Basic calculations (n = 20804985)

Multiplication

n×y
n×2 41609970
n×3 62414955
n×4 83219940
n×5 104024925

Division

n÷y
n÷2 10402492.5
n÷3 6934995
n÷3 5201246.25
n÷5 4160997

Exponentiation

ny
n2 432847400850225
n3 9.0053836819779E+21
n4 1.873568724228E+29
n5 3.8979569204032E+36

Nth Root

y√n
2√n 4561.2481844337
3√n 275.03574191088
4√n 67.537013440289
5√n 29.082616829723

Divisors of 20804985

1, 3, 5, 9, 15, 27, 45, 135, 154111, 462333, 770555, 1386999, 2311665, 4160997, 6934995, 20804985

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20804984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20804985 can be divided by 16 positive divisors. The sum of these divisors (counting 20804985) is 1, the average is 0.0625.

Base conversion 20804985

Base System Value
2 Binary 1001111010111010101111001
3 Ternary 1110011000002000
4 Quaternary 1033113111321
5 Quinary 20311224420
6 Senary 2021531213
8 Octal 117272571
10 Decimal 20804985
12 Duodecimal 6b73b09
16 Hexadecimal 13d7579
20 Vigesimal 6a0c95
36 Base36 cdx89

Cryptographic Hash Functions

md5 208191c185af89f07630104db1ef7033
sha1 48a404798717af8ca2691a230e6158fbd7f22034
sha256 33834fa2983f846221312b3617688b2d62ee63e112ab771bf20c838f08522283
sha512 4a8c1fa6921481a8f4a7633316ece5e63bba476d44bb1738be71de27b5b0e113867ae2a5b3200771bb26f87290994718d663089ca881bfb5360d6a62181ede5e
ripemd-160 8b2798c49d27edc27e37d37a0c20e9a741affa9a

20804985 as geometric shapes

Circle

Radius = n
Diameter 41609970
Circumference 130721576.06809
Area 1.3598302146365E+15

Sphere

Radius = n
Volume 3.7721662957412E+22
Surface area 5.439320858546E+15
Circumference 130721576.06809

Square

Length = n
Perimeter 83219940
Area 432847400850225
Diagonal 29422691.951969

Cube

Length = n
Surface area 2597084405101350
Volume 9.0053836819779E+21
Space diagonal 36035291.070708

Equilateral Triangle

Length = n
Perimeter 62414955
Area 1.8742842254918E+14
Altitude 18017645.535354

Triangular Pyramid

Length = n
Surface area 1.8742842254918E+14
Volume 1.0612946447855E+21
Height 9807563.9839896