20781472 (number)

20781472 is an even 8-digits composite number following 20781471 and preceding 20781473. In scientific notation, it is written as 2.0781472 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 12 positive divisors. There are 10390720 positive integers (up to 20781472) that are relatively prime to 20781472.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-one thousand four hundred seventy-two

Notation

Scientific notation 2.0781472 × 10^7
Engineering notation 2.0781472 × 10^6

Prime Factorization of 20781472

Prime Factorization 2 × 2 × 2 × 2 × 2 × 649421

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1298842
Product of the distinct prime numbers

The prime factorization of 20781472 is 2 × 2 × 2 × 2 × 2 × 649421. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 2, 72, 74, 267, 253, 3108, 995, 3878, 49696, 715277, 713283, 2166892, 9629641, 40596973, 85055015, 242099077, 423297058, 5244670600, 128015003

Basic calculations (n = 20781472)

Multiplication

n×y
n×2 41562944
n×3 62344416
n×4 83125888
n×5 103907360

Division

n÷y
n÷2 10390736
n÷3 6927157.3333333
n÷3 5195368
n÷5 4156294.4

Exponentiation

ny
n2 431869578486784
n3 8.9748855529749E+21
n4 1.8651133282235E+29
n5 3.8759800407304E+36

Nth Root

y√n
2√n 4558.6699814749
3√n 274.9320912209
4√n 67.517923409083
5√n 29.076040243295

Divisors of 20781472

1, 2, 4, 8, 16, 32, 649421, 1298842, 2597684, 5195368, 10390736, 20781472

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 -20781471
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 20781472 can be divided by 12 positive divisors. The sum of these divisors (counting 20781472) is 1, the average is 0.083333333333333.

Base conversion 20781472

Base System Value
2 Binary 1001111010001100110100000
3 Ternary 1110002210211011
4 Quaternary 1033101212200
5 Quinary 20310001342
6 Senary 2021230304
8 Octal 117214640
10 Decimal 20781472
12 Duodecimal 6b62394
16 Hexadecimal 13d19a0
20 Vigesimal 69hddc
36 Base36 cdf34

Cryptographic Hash Functions

md5 a35b5438975cd527db71eb69b5c00d03
sha1 58ee290adf56d3b41fbe292f82cd6077c31a5c0c
sha256 0409a4d161afa6ca6e416e955ef25b6b4d1569826592e9e8386bae48db9711f0
sha512 84b1e677e0c70e705f6c7ffb9e78b3e4da5267bfda58a1e9f4580750454fdc2fc4d4ef9798b8f9e8f0e1977d9c3509c10ff6624f12aad95607bde882f6696572
ripemd-160 3a16906ae4f96d84c979b66b1ad143ac0eb13340

20781472 as geometric shapes

Circle

Radius = n
Diameter 41562944
Circumference 130573839.53196
Area 1.356758295083E+15

Sphere

Radius = n
Volume 3.759391269338E+22
Surface area 5.427033180332E+15
Circumference 130573839.53196

Square

Length = n
Perimeter 83125888
Area 431869578486784
Diagonal 29389439.548477

Cube

Length = n
Surface area 2591217470920704
Volume 8.9748855529749E+21
Space diagonal 35994565.36007

Equilateral Triangle

Length = n
Perimeter 62344416
Area 1.8700501304562E+14
Altitude 17997282.680035

Triangular Pyramid

Length = n
Surface area 1.8700501304562E+14
Volume 1.0577004058136E+21
Height 9796479.8494922