Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20728478 (number)

20728478 is an even 8-digits composite number following 20728477 and preceding 20728479. In scientific notation, it is written as 2.0728478 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 10364238 positive integers (up to 20728478) that are relatively prime to 20728478.

Interesting facts

20728478 has 4 divisors, whose sum is 31092720
The reverse of 20728478 is 87482702
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twenty million seven hundred twenty-eight thousand four hundred seventy-eight

Notation

Scientific notation	2.0728478 × 10^7
Engineering notation	2.0728478 × 10^6

Prime Factorization of 20728478

Prime Factorization 2 × 10364239

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20728478	Product of the distinct prime numbers

The prime factorization of 20728478 is 2 × 10364239. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 15, 74, 869, 56, 9546, 3245, 31390, 45998, 468264, 377846, 204027, 25857, 98189203, 39056509, 827201633, 758728823, 5459090720, 7739681477

Basic calculations (n = 20728478)

Multiplication

n×y

n×2	41456956
n×3	62185434
n×4	82913912
n×5	103642390

Division

n÷y

n÷2	10364239
n÷3	6909492.6666667
n÷3	5182119.5
n÷5	4145695.6

Exponentiation

n^y

n²	429669800196484
n³	8.9064010006372E+21
n⁴	1.8461613720089E+29
n⁵	3.8268115384136E+36

Nth Root

^y√n

²√n	4552.8538302915
³√n	274.69819451719
⁴√n	67.474838497706
⁵√n	29.061195964742

Divisors of 20728478

1, 2, 10364239, 20728478

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	-20728477	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 20728478 can be divided by 4 positive divisors. The sum of these divisors (counting 20728478) is 1, the average is 0.25.

Base conversion 20728478

Base	System	Value
2	Binary	1001111000100101010011110
3	Ternary	1110000010010102
4	Quaternary	1033010222132
5	Quinary	20301302403
6	Senary	2020141102
8	Octal	117045236
10	Decimal	20728478
12	Duodecimal	6b37792
16	Hexadecimal	13c4a9e
20	Vigesimal	69b13i
36	Base36	cca72

Cryptographic Hash Functions

md5	aefa1878522951b5bf02082cc2a659a3
sha1	87d9a345a2ced596b28e0b0ca461d561a1763e2d
sha256	dde52cebb758a5fc9f634b5b6d30b8913e0279e2966b44dc9a475f1fe53d1a69
sha512	d330d9f717f0fa6e39b92429c80d78128aebe5a22b68574de383324642d4266c0560b4662827379ed1802dbaab3d28a44b2729af68e7f1c4f0245a58fc456da6
ripemd-160	7cd7fc0ef9e644318dce2b53448ef86f2a204463

20728478 as geometric shapes

Circle

Radius = n

Diameter	41456956
Circumference	130240868.4098
Area	1.3498474877667E+15

Sphere

Radius = n

Volume	3.7307045271369E+22
Surface area	5.3993899510667E+15
Circumference	130240868.4098

Square

Length = n

Perimeter	82913912
Area	429669800196484
Diagonal	29314494.714952

Cube

Length = n

Surface area	2578018801178904
Volume	8.9064010006372E+21
Space diagonal	35902777.059574

Equilateral Triangle

Length = n

Perimeter	62185434
Area	1.8605248110457E+14
Altitude	17951388.529787

Triangular Pyramid

Length = n

Surface area	1.8605248110457E+14
Volume	1.0496294239195E+21
Height	9771498.2383174