20803985 (number)

20803985 is an odd 8-digits composite number following 20803984 and preceding 20803986. In scientific notation, it is written as 2.0803985 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 16643184 positive integers (up to 20803985) that are relatively prime to 20803985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0803985 × 10^7
Engineering notation 2.0803985 × 10^6

Prime Factorization of 20803985

Prime Factorization 5 × 4160797

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20803985
Product of the distinct prime numbers

The prime factorization of 20803985 is 5 × 4160797. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 55, 71, 185, 392, 6685, 3925, 74414, 91600, 208924, 365257, 7432190, 7875145, 44328737, 93072405, 133469598, 317134193, 2983846144, 3518609044

Basic calculations (n = 20803985)

Multiplication

n×y
n×2 41607970
n×3 62411955
n×4 83215940
n×5 104019925

Division

n÷y
n÷2 10401992.5
n÷3 6934661.6666667
n÷3 5200996.25
n÷5 4160797

Exponentiation

ny
n2 432805791880225
n3 9.0040852021893E+21
n4 1.8732085348507E+29
n5 3.8970202260906E+36

Nth Root

y√n
2√n 4561.1385639991
3√n 275.0313352723
4√n 67.536201877209
5√n 29.082337250805

Divisors of 20803985

1, 5, 4160797, 20803985

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20803984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20803985 can be divided by 4 positive divisors. The sum of these divisors (counting 20803985) is 1, the average is 0.25.

Base conversion 20803985

Base System Value
2 Binary 1001111010111000110010001
3 Ternary 1110010221200222
4 Quaternary 1033113012101
5 Quinary 20311211420
6 Senary 2021522425
8 Octal 117270621
10 Decimal 20803985
12 Duodecimal 6b73415
16 Hexadecimal 13d7191
20 Vigesimal 6a09j5
36 Base36 cdwgh

Cryptographic Hash Functions

md5 24167803f672a5683a2d495872c8f55b
sha1 fdd9a18feafbe36741601aac12fe5746bf487a7e
sha256 a868ca428fb14a17af213cb34f49268f749fda8e3bf6f58e6f6fcf132654f365
sha512 f380ca3e9b19acf8b2e090514b12e08292071995e694ed0311548d124b1b447a882371c73a27bf01cb9c66634055f844c726e825fb63b511ece7e9e6867e924b
ripemd-160 b5aca18aa2159362604b8ace3c08e250bd75a548

20803985 as geometric shapes

Circle

Radius = n
Diameter 41607970
Circumference 130715292.88278
Area 1.359699496202E+15

Sphere

Radius = n
Volume 3.7716223897993E+22
Surface area 5.4387979848081E+15
Circumference 130715292.88278

Square

Length = n
Perimeter 83215940
Area 432805791880225
Diagonal 29421277.738406

Cube

Length = n
Surface area 2596834751281350
Volume 9.0040852021893E+21
Space diagonal 36033559.019901

Equilateral Triangle

Length = n
Perimeter 62411955
Area 1.8741040533666E+14
Altitude 18016779.50995

Triangular Pyramid

Length = n
Surface area 1.8741040533666E+14
Volume 1.0611416174749E+21
Height 9807092.5794688