20280731 (number)

20280731 is an odd 8-digits composite number following 20280730 and preceding 20280732. In scientific notation, it is written as 2.0280731 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 19948200 positive integers (up to 20280731) that are relatively prime to 20280731.

Interesting facts

Basic properties

Name

Name twenty million two hundred eighty thousand seven hundred thirty-one

Notation

Scientific notation 2.0280731 × 10^7
Engineering notation 2.0280731 × 10^6

Prime Factorization of 20280731

Prime Factorization 61 × 332471

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20280731
Product of the distinct prime numbers

The prime factorization of 20280731 is 61 × 332471. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20280731)

Multiplication

n×y
n×2 40561462
n×3 60842193
n×4 81122924
n×5 101403655

Division

n÷y
n÷2 10140365.5
n÷3 6760243.6666667
n÷3 5070182.75
n÷5 4056146.2

Exponentiation

ny
n2 411308049894361
n3 8.3416279180421E+21
n4 1.691743119079E+29
n5 3.4309787119143E+36

Nth Root

y√n
2√n 4503.4132610721
3√n 272.70590055081
4√n 67.107475448508
5√n 28.934549232516

Divisors of 20280731

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 -20280730
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 20280731 can be divided by 4 positive divisors. The sum of these divisors (counting 20280731) is 1, the average is 0.25.

Base conversion 20280731

Base System Value
2 Binary 1001101010111010110011011
3 Ternary 1102011100221012
4 Quaternary 1031113112123
5 Quinary 20142440411
6 Senary 2002404135
8 Octal 115272633
10 Decimal 20280731
12 Duodecimal 696064b
16 Hexadecimal 135759b
20 Vigesimal 66f1gb
36 Base36 c2opn

Cryptographic Hash Functions

md5 f06d815a547eb7694e80f71051173619
sha1 8dd356ac4eef35fef120f0369b5e67c3f6314d28
sha256 c626fac8ed39607f628a995c8c1f2a192f67c6e1231e3a790b2f8317d36d8ab3
sha512 fb2e8429e2f9cbffa00f1c77a11019d310c3703c818749dbf254780719f871f6a9cfe11494390f5e83218ffe3a4e53382ee4a1909b1ebea2304bed73f26604bc
ripemd-160 36899fa14376c5f3397ea94250c4e30e282c98f8

20280731 as geometric shapes

Circle

Radius = n
Diameter 40561462
Circumference 127427591.03806
Area 1.2921623479105E+15

Sphere

Radius = n
Volume 3.4941329315067E+22
Surface area 5.1686493916419E+15
Circumference 127427591.03806

Square

Length = n
Perimeter 81122924
Area 411308049894361
Diagonal 28681284.83504

Cube

Length = n
Surface area 2467848299366166
Volume 8.3416279180421E+21
Space diagonal 35127256.506637

Equilateral Triangle

Length = n
Perimeter 60842193
Area 1.7810160999478E+14
Altitude 17563628.253319

Triangular Pyramid

Length = n
Surface area 1.7810160999478E+14
Volume 9.8307027783043E+20
Height 9560428.2783468