20685729 (number)

20685729 is an odd 8-digits composite number following 20685728 and preceding 20685730. In scientific notation, it is written as 2.0685729 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 13314896 positive integers (up to 20685729) that are relatively prime to 20685729.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-five thousand seven hundred twenty-nine

Notation

Scientific notation 2.0685729 × 10^7
Engineering notation 2.0685729 × 10^6

Prime Factorization of 20685729

Prime Factorization 29 × 3 × 237767

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20685729
Product of the distinct prime numbers

The prime factorization of 20685729 is 29 × 3 × 237767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20685729)

Multiplication

n×y
n×2 41371458
n×3 62057187
n×4 82742916
n×5 103428645

Division

n÷y
n÷2 10342864.5
n÷3 6895243
n÷3 5171432.25
n÷5 4137145.8

Exponentiation

ny
n2 427899384261441
n3 8.851410702099E+21
n4 1.8309788305132E+29
n5 3.7875131892733E+36

Nth Root

y√n
2√n 4548.156659571
3√n 274.50922494139
4√n 67.440022683648
5√n 29.049199298313

Divisors of 20685729

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20685728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20685729 can be divided by 8 positive divisors. The sum of these divisors (counting 20685729) is 1, the average is 0.125.

Base conversion 20685729

Base System Value
2 Binary 1001110111010001110100001
3 Ternary 1102220221111010
4 Quaternary 1032322032201
5 Quinary 20243420404
6 Senary 2015211133
8 Octal 116721641
10 Decimal 20685729
12 Duodecimal 6b16aa9
16 Hexadecimal 13ba3a1
20 Vigesimal 695e69
36 Base36 cbd7l

Cryptographic Hash Functions

md5 db03cfb08e516a36b5048442b19f8a32
sha1 9a61e72da8476280183ec675b3170a2dead9ddd3
sha256 1646cb1ac6a47c4d68dad78259921d1946e88c39d809cb3761a2aec9ceff4ccf
sha512 dc054cced1f67b9861d61acd8510516af486ca8bf1ed7d20108b49aa56f015c4199e903cc44e6477b5127a9015a9c0f40e8a35efd9a204b7f79210ab62eb3adc
ripemd-160 61baaa45e2eb67bcef3c5e57d2a8f5320cc05657

20685729 as geometric shapes

Circle

Radius = n
Diameter 41371458
Circumference 129972268.5211
Area 1.3442855620713E+15

Sphere

Radius = n
Volume 3.7076702447494E+22
Surface area 5.3771422482854E+15
Circumference 129972268.5211

Square

Length = n
Perimeter 82742916
Area 427899384261441
Diagonal 29254038.499374

Cube

Length = n
Surface area 2567396305568646
Volume 8.851410702099E+21
Space diagonal 35828733.619601

Equilateral Triangle

Length = n
Perimeter 62057187
Area 1.8528586851706E+14
Altitude 17914366.8098

Triangular Pyramid

Length = n
Surface area 1.8528586851706E+14
Volume 1.0431487550869E+21
Height 9751346.1664581