20505720 (number)

20505720 is an even 8-digits composite number following 20505719 and preceding 20505721. In scientific notation, it is written as 2.0505720 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 16 positive divisors. There are 5468160 positive integers (up to 20505720) that are relatively prime to 20505720.

Interesting facts

Basic properties

Name

Name twenty million five hundred five thousand seven hundred twenty

Notation

Scientific notation 2.0505720 × 10^7
Engineering notation 2.0505720 × 10^6

Prime Factorization of 20505720

Prime Factorization 2 × 2 × 2 × 15 × 170881

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5126430
Product of the distinct prime numbers

The prime factorization of 20505720 is 2 × 2 × 2 × 15 × 170881. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 31, 76, 625, 298, 3901, 2842, 34954, 28183, 608591, 4133, 8164428, 9543181, 44951614, 75167348, 376734444, 577575702, 618267177, 2828780446

Basic calculations (n = 20505720)

Multiplication

n×y
n×2 41011440
n×3 61517160
n×4 82022880
n×5 102528600

Division

n÷y
n÷2 10252860
n÷3 6835240
n÷3 5126430
n÷5 4101144

Exponentiation

ny
n2 420484552718400
n3 8.6223385023687E+21
n4 1.7680725907479E+29
n5 3.6255601485552E+36

Nth Root

y√n
2√n 4528.3241933413
3√n 273.71063631994
4√n 67.292824233653
5√n 28.998464662593

Divisors of 20505720

1, 2, 4, 8, 15, 30, 60, 120, 170881, 341762, 683524, 1367048, 2563215, 5126430, 10252860, 20505720

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20505719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20505720 can be divided by 16 positive divisors. The sum of these divisors (counting 20505720) is 1, the average is 0.0625.

Base conversion 20505720

Base System Value
2 Binary 1001110001110010001111000
3 Ternary 1102120210120010
4 Quaternary 1032032101320
5 Quinary 20222140340
6 Senary 2011301520
8 Octal 116162170
10 Decimal 20505720
12 Duodecimal 6a4a8a0
16 Hexadecimal 138e478
20 Vigesimal 683460
36 Base36 c7ibc

Cryptographic Hash Functions

md5 30a7119d051579d1c94d18fb08348722
sha1 a755e4d3adf5573f2e022e539d17f02e99fe1ca2
sha256 6c528b89ea8041bc973a5082ff3f1245fc9112b748470372b2033da33943affb
sha512 286cff3e715ab651d10de54b2345d32fb945a513f396118eab0bb261b062a0c50c329240e829994db34d849e6198951965a5858a26d93b55d0961211d58feab7
ripemd-160 68b06b35e6763b47e0cf0f4d40418bc7817de4af

20505720 as geometric shapes

Circle

Radius = n
Diameter 41011440
Circumference 128841238.61714
Area 1.3209911817681E+15

Sphere

Radius = n
Volume 3.6117167061075E+22
Surface area 5.2839647270725E+15
Circumference 128841238.61714

Square

Length = n
Perimeter 82022880
Area 420484552718400
Diagonal 28999467.330225

Cube

Length = n
Surface area 2522907316310400
Volume 8.6223385023687E+21
Space diagonal 35516948.885781

Equilateral Triangle

Length = n
Perimeter 61517160
Area 1.8207515227654E+14
Altitude 17758474.442891

Triangular Pyramid

Length = n
Surface area 1.8207515227654E+14
Volume 1.0161523374518E+21
Height 9666489.1100751