20781340 (number)

20781340 is an even 8-digits composite number following 20781339 and preceding 20781341. In scientific notation, it is written as 2.0781340 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 8312528 positive integers (up to 20781340) that are relatively prime to 20781340.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-one thousand three hundred forty

Notation

Scientific notation 2.0781340 × 10^7
Engineering notation 2.0781340 × 10^6

Prime Factorization of 20781340

Prime Factorization 2 × 2 × 5 × 1039067

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10390670
Product of the distinct prime numbers

The prime factorization of 20781340 is 2 × 2 × 5 × 1039067. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 90, 32, 402, 668, 2692, 7496, 2462, 83210, 87827, 585124, 4176331, 7073241, 1069187, 67667833, 751900943, 897032526, 5020681262, 5612138399

Basic calculations (n = 20781340)

Multiplication

n×y
n×2 41562680
n×3 62344020
n×4 83125360
n×5 103906700

Division

n÷y
n÷2 10390670
n÷3 6927113.3333333
n÷3 5195335
n÷5 4156268

Exponentiation

ny
n2 431864092195600
n3 8.9747145337081E+21
n4 1.8650659412793E+29
n5 3.8758569448145E+36

Nth Root

y√n
2√n 4558.6555035449
3√n 274.93150911403
4√n 67.517816193542
5√n 29.076003306093

Divisors of 20781340

1, 2, 4, 5, 10, 20, 1039067, 2078134, 4156268, 5195335, 10390670, 20781340

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20781339
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20781340 can be divided by 12 positive divisors. The sum of these divisors (counting 20781340) is 1, the average is 0.083333333333333.

Base conversion 20781340

Base System Value
2 Binary 1001111010001100100011100
3 Ternary 1110002210122021
4 Quaternary 1033101210130
5 Quinary 20310000330
6 Senary 2021225524
8 Octal 117214434
10 Decimal 20781340
12 Duodecimal 6b622a4
16 Hexadecimal 13d191c
20 Vigesimal 69hd70
36 Base36 cdezg

Cryptographic Hash Functions

md5 7a41a6c12a163e08eda2be2d3e5561e9
sha1 39d2b95fc2971d5f596693e6e7a3065cdf832305
sha256 4122cea6947f07f1f2ba6098bd01f444951da557e2712ad8314bf1764136dda6
sha512 7a88b09708b1e463c73483be447c9f3e54bc16f6b87d90e665a5dcf41542ef9cdfdb0e49813e7a230775e0a6a0131930a4d14351a483b1fe3a8e70098f64dc8f
ripemd-160 345ec61ab1a732d1b6943bd003983429985abc37

20781340 as geometric shapes

Circle

Radius = n
Diameter 41562680
Circumference 130573010.1515
Area 1.3567410593909E+15

Sphere

Radius = n
Volume 3.7593196329551E+22
Surface area 5.4269642375637E+15
Circumference 130573010.1515

Square

Length = n
Perimeter 83125360
Area 431864092195600
Diagonal 29389252.872286

Cube

Length = n
Surface area 2591184553173600
Volume 8.9747145337081E+21
Space diagonal 35994336.729363

Equilateral Triangle

Length = n
Perimeter 62344020
Area 1.8700263741185E+14
Altitude 17997168.364682

Triangular Pyramid

Length = n
Surface area 1.8700263741185E+14
Volume 1.0576802509997E+21
Height 9796417.6240955