20208731 (number)

20208731 is an odd 8-digits composite number following 20208730 and preceding 20208732. In scientific notation, it is written as 2.0208731 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 19778712 positive integers (up to 20208731) that are relatively prime to 20208731.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0208731 × 10^7
Engineering notation 2.0208731 × 10^6

Prime Factorization of 20208731

Prime Factorization 47 × 429973

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20208731
Product of the distinct prime numbers

The prime factorization of 20208731 is 47 × 429973. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20208731)

Multiplication

n×y
n×2 40417462
n×3 60626193
n×4 80834924
n×5 101043655

Division

n÷y
n÷2 10104365.5
n÷3 6736243.6666667
n÷3 5052182.75
n÷5 4041746.2

Exponentiation

ny
n2 408392808630361
n3 8.2531004119454E+21
n4 1.6678468614099E+29
n5 3.3705068571428E+36

Nth Root

y√n
2√n 4495.4122169163
3√n 272.38280065173
4√n 67.047835288816
5√n 28.91397549412

Divisors of 20208731

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 -20208730
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 20208731 can be divided by 4 positive divisors. The sum of these divisors (counting 20208731) is 1, the average is 0.25.

Base conversion 20208731

Base System Value
2 Binary 1001101000101110001011011
3 Ternary 1102000201011112
4 Quaternary 1031011301123
5 Quinary 20133134411
6 Senary 2001050535
8 Octal 115056133
10 Decimal 20208731
12 Duodecimal 6926a4b
16 Hexadecimal 1345c5b
20 Vigesimal 6661gb
36 Base36 c155n

Cryptographic Hash Functions

md5 4e260f7d12969d21dcbfae49d1cf0236
sha1 a33f20fa081b58bdae28a078cfacfacaa34166bd
sha256 6c320e0c5652a16529a18fe6adf33e0abee0ffc0748c4d0b332a8475ba8c37bf
sha512 8ff9fac933caa8ca2b51866fd1615ac988251f8877171354c2bf0d2ecd791ef29718ced7f8a15330f3bf9ea11d25bde54e3c7274788b66be3d3a9bfebe1b7384
ripemd-160 6e4a57770d37e3de400e4dd5af5042a63c3c224e

20208731 as geometric shapes

Circle

Radius = n
Diameter 40417462
Circumference 126975201.69594
Area 1.283003847372E+15

Sphere

Radius = n
Volume 3.4570506164676E+22
Surface area 5.1320153894882E+15
Circumference 126975201.69594

Square

Length = n
Perimeter 80834924
Area 408392808630361
Diagonal 28579461.45855

Cube

Length = n
Surface area 2450356851782166
Volume 8.2531004119454E+21
Space diagonal 35002548.848492

Equilateral Triangle

Length = n
Perimeter 60626193
Area 1.7683927349838E+14
Altitude 17501274.424246

Triangular Pyramid

Length = n
Surface area 1.7683927349838E+14
Volume 9.7263721118335E+20
Height 9526487.1528499