20120905 (number)

20120905 is an odd 8-digits composite number following 20120904 and preceding 20120906. In scientific notation, it is written as 2.0120905 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors. There are 12871872 positive integers (up to 20120905) that are relatively prime to 20120905.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty thousand nine hundred five

Notation

Scientific notation 2.0120905 × 10^7
Engineering notation 2.0120905 × 10^6

Prime Factorization of 20120905

Prime Factorization 95 × 7 × 79 × 383

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20120905
Product of the distinct prime numbers

The prime factorization of 20120905 is 95 × 7 × 79 × 383. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 57, 93, 676, 71, 8502, 4570, 42776, 26426, 95181, 830661, 2366432, 9427952, 82656907, 1971873, 302702960, 619112795, 7974822568, 8125874923

Basic calculations (n = 20120905)

Multiplication

n×y
n×2 40241810
n×3 60362715
n×4 80483620
n×5 100604525

Division

n÷y
n÷2 10060452.5
n÷3 6706968.3333333
n÷3 5030226.25
n÷5 4024181

Exponentiation

ny
n2 404850818019025
n3 8.1459648485331E+21
n4 1.6390418485067E+29
n5 3.2979005324828E+36

Nth Root

y√n
2√n 4485.6331771557
3√n 271.98764091047
4√n 66.974869743477
5√n 28.888799991599

Divisors of 20120905

1, 7, 79, 95, 383, 553, 665, 2681, 7505, 30257, 36385, 52535, 211799, 254695, 2874415, 20120905

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 -20120904
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 20120905 can be divided by 16 positive divisors. The sum of these divisors (counting 20120905) is 1, the average is 0.0625.

Base conversion 20120905

Base System Value
2 Binary 1001100110000010101001001
3 Ternary 1101212020200201
4 Quaternary 1030300111021
5 Quinary 20122332110
6 Senary 1555132201
8 Octal 114602511
10 Decimal 20120905
12 Duodecimal 68a4061
16 Hexadecimal 1330549
20 Vigesimal 65f255
36 Base36 bz9e1

Cryptographic Hash Functions

md5 67dea5885a3269e90015c3184462041a
sha1 013d6b7485264ed457ca275de31ef147158e16d2
sha256 5d9e831fcd7fdb3b98994be793cb2c2f23f237cae8ec4dbd33f79d658eec4a81
sha512 ed0351e99721a4e360af3eedf02cc9eba6d65d7e40ee92f2f5fe976caf3974da9f284b4c127d79766c4f78c1bfc5149a379b73b967e3dfb5b75bb3c86c95f506
ripemd-160 73af70bf6dd687c383faa3ff2a38f0991c9307d9

20120905 as geometric shapes

Circle

Radius = n
Diameter 40241810
Circumference 126423374.66316
Area 1.2718763556884E+15

Sphere

Radius = n
Volume 3.412173776607E+22
Surface area 5.0875054227535E+15
Circumference 126423374.66316

Square

Length = n
Perimeter 80483620
Area 404850818019025
Diagonal 28455256.738221

Cube

Length = n
Surface area 2429104908114150
Volume 8.1459648485331E+21
Space diagonal 34850429.754267

Equilateral Triangle

Length = n
Perimeter 60362715
Area 1.7530554657369E+14
Altitude 17425214.877133

Triangular Pyramid

Length = n
Surface area 1.7530554657369E+14
Volume 9.6001116395083E+20
Height 9485085.5794069