20120805 (number)

20120805 is an odd 8-digits composite number following 20120804 and preceding 20120806. In scientific notation, it is written as 2.0120805 × 10^7. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 10730880 positive integers (up to 20120805) that are relatively prime to 20120805.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty thousand eight hundred five

Notation

Scientific notation 2.0120805 × 10^7
Engineering notation 2.0120805 × 10^6

Prime Factorization of 20120805

Prime Factorization 81 × 5 × 49681

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20120805
Product of the distinct prime numbers

The prime factorization of 20120805 is 81 × 5 × 49681. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 2, 71, 13, 976, 51, 4726, 3617, 80761, 43032, 181679, 183274, 6858651, 6718467, 29521144, 85937596, 864327706, 508771167, 3597929666, 3121220043

Basic calculations (n = 20120805)

Multiplication

n×y
n×2 40241610
n×3 60362415
n×4 80483220
n×5 100604025

Division

n÷y
n÷2 10060402.5
n÷3 6706935
n÷3 5030201.25
n÷5 4024161

Exponentiation

ny
n2 404846793848025
n3 8.1458433938913E+21
n4 1.6390092648903E+29
n5 3.297818581205E+36

Nth Root

y√n
2√n 4485.6220304435
3√n 271.98719032091
4√n 66.974786527793
5√n 28.888771276333

Divisors of 20120805

1, 5, 81, 405, 49681, 248405, 4024161, 20120805

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 -20120804
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 20120805 can be divided by 8 positive divisors. The sum of these divisors (counting 20120805) is 1, the average is 0.125.

Base conversion 20120805

Base System Value
2 Binary 1001100110000010011100101
3 Ternary 1101212020120000
4 Quaternary 1030300103211
5 Quinary 20122331210
6 Senary 1555131513
8 Octal 114602345
10 Decimal 20120805
12 Duodecimal 68a3b99
16 Hexadecimal 13304e5
20 Vigesimal 65f205
36 Base36 bz9b9

Cryptographic Hash Functions

md5 d819109296025e9fa984b864d99dd428
sha1 942197c77533c884800d73877730700b816b7400
sha256 095b86916c460afc2943008c41dae5b591cc6a6a81292564520598eb0db2473c
sha512 f221b05fc373ef3bef2871fd84b604d1c649056ded5e99f2369de73ed7caf215d03ac8d67d39674c9ec460320162e382a92a90ae276888573bfa2b841031dcdf
ripemd-160 f3a11eba6748b56bbaf975597e9b47100685f6f3

20120805 as geometric shapes

Circle

Radius = n
Diameter 40241610
Circumference 126422746.34463
Area 1.2718637133823E+15

Sphere

Radius = n
Volume 3.4121229018056E+22
Surface area 5.0874548535293E+15
Circumference 126422746.34463

Square

Length = n
Perimeter 80483220
Area 404846793848025
Diagonal 28455115.316864

Cube

Length = n
Surface area 2429080763088150
Volume 8.1458433938913E+21
Space diagonal 34850256.549186

Equilateral Triangle

Length = n
Perimeter 60362415
Area 1.7530380405654E+14
Altitude 17425128.274593

Triangular Pyramid

Length = n
Surface area 1.7530380405654E+14
Volume 9.5999685038403E+20
Height 9485038.4389548