20805940 (number)

20805940 is an even 8-digits composite number following 20805939 and preceding 20805941. In scientific notation, it is written as 2.0805940 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors. There are 8297088 positive integers (up to 20805940) that are relatively prime to 20805940.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand nine hundred forty

Notation

Scientific notation 2.0805940 × 10^7
Engineering notation 2.0805940 × 10^6

Prime Factorization of 20805940

Prime Factorization 2 × 2 × 5 × 373 × 2789

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10402970
Product of the distinct prime numbers

The prime factorization of 20805940 is 2 × 2 × 5 × 373 × 2789. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 1, 92, 11, 234, 849, 267, 659, 16286, 52670, 746767, 44368, 8227980, 6774701, 20094745, 3163893, 992684298, 707849996, 1137817055, 6325912966

Basic calculations (n = 20805940)

Multiplication

n×y
n×2 41611880
n×3 62417820
n×4 83223760
n×5 104029700

Division

n÷y
n÷2 10402970
n÷3 6935313.3333333
n÷3 5201485
n÷5 4161188

Exponentiation

ny
n2 432887139283600
n3 9.0066238467062E+21
n4 1.8739127535714E+29
n5 3.8988516316041E+36

Nth Root

y√n
2√n 4561.3528694895
3√n 275.0399501189
4√n 67.537788455719
5√n 29.082883817555

Divisors of 20805940

1, 2, 4, 5, 10, 20, 373, 746, 1492, 1865, 2789, 3730, 5578, 7460, 11156, 13945, 27890, 55780, 1040297, 2080594, 4161188, 5201485, 10402970, 20805940

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805940 can be divided by 24 positive divisors. The sum of these divisors (counting 20805940) is 1, the average is 0.041666666666667.

Base conversion 20805940

Base System Value
2 Binary 1001111010111100100110100
3 Ternary 1110011001101101
4 Quaternary 1033113210310
5 Quinary 20311242230
6 Senary 2021535444
8 Octal 117274464
10 Decimal 20805940
12 Duodecimal 6b74584
16 Hexadecimal 13d7934
20 Vigesimal 6a0eh0
36 Base36 cdxys

Cryptographic Hash Functions

md5 d630d9c78450da7a696568bb08ab4064
sha1 25f4520ad1b9364f9b94a546bb64582ca46695a8
sha256 f4f6ef50c7ef54f975c07288a489fe746b417c7ea64fb9fdd280d92bb2be5f70
sha512 3b8cbda621fd6cac05712c14e46e8570e00b299577256464513f4299d3226603df8f3d36b104fc2df10212264dbf843971adc2df6c2a908b15e1aa1de7b6f429
ripemd-160 2663fd55f50cbf86f0d8474aaa489105ecce0447

20805940 as geometric shapes

Circle

Radius = n
Diameter 41611880
Circumference 130727576.51006
Area 1.3599550566069E+15

Sphere

Radius = n
Volume 3.7726857747279E+22
Surface area 5.4398202264274E+15
Circumference 130727576.51006

Square

Length = n
Perimeter 83223760
Area 432887139283600
Diagonal 29424042.525921

Cube

Length = n
Surface area 2597322835701600
Volume 9.0066238467062E+21
Space diagonal 36036945.17923

Equilateral Triangle

Length = n
Perimeter 62417820
Area 1.8744562979559E+14
Altitude 18018472.589615

Triangular Pyramid

Length = n
Surface area 1.8744562979559E+14
Volume 1.0614407996004E+21
Height 9808014.175307