20685440 (number)

20685440 is an even 8-digits composite number following 20685439 and preceding 20685441. In scientific notation, it is written as 2.0685440 × 10^7. The sum of its digits is 29. It has a total of 9 prime factors and 32 positive divisors. There are 8273920 positive integers (up to 20685440) that are relatively prime to 20685440.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-five thousand four hundred forty

Notation

Scientific notation 2.0685440 × 10^7
Engineering notation 2.0685440 × 10^6

Prime Factorization of 20685440

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 32321

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 323210
Product of the distinct prime numbers

The prime factorization of 20685440 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 32321. Since it has a total of 9 prime factors.

Most popular turbo-numbers

1, 1, 90, 19, 257, 611, 2647, 3574, 50990, 12169, 770770, 299726, 4404191, 4802828, 25155791, 60653579, 352154639, 988490888, 8785377156, 5240108477

Basic calculations (n = 20685440)

Multiplication

n×y
n×2 41370880
n×3 62056320
n×4 82741760
n×5 103427200

Division

n÷y
n÷2 10342720
n÷3 6895146.6666667
n÷3 5171360
n÷5 4137088

Exponentiation

ny
n2 427887427993600
n3 8.8510397185159E+21
n4 1.8308765103498E+29
n5 3.787248620225E+36

Nth Root

y√n
2√n 4548.1248883468
3√n 274.50794654739
4√n 67.439787131536
5√n 29.049118128676

Divisors of 20685440

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32321, 64642, 129284, 161605, 258568, 323210, 517136, 646420, 1034272, 1292840, 2068544, 2585680, 4137088, 5171360, 10342720, 20685440

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20685439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20685440 can be divided by 32 positive divisors. The sum of these divisors (counting 20685440) is 1, the average is 0.03125.

Base conversion 20685440

Base System Value
2 Binary 1001110111010001010000000
3 Ternary 1102220221002102
4 Quaternary 1032322022000
5 Quinary 20243413230
6 Senary 2015205532
8 Octal 116721200
10 Decimal 20685440
12 Duodecimal 6b168a8
16 Hexadecimal 13ba280
20 Vigesimal 695dc0
36 Base36 cbczk

Cryptographic Hash Functions

md5 167dac0518b74009b87a039e33f0e07e
sha1 7a2d11cdcf79343d9276ec228bb1989df65903a0
sha256 406a1e049e484f025826eafb3688be6e2accf42e74b704cd8d17f060ed2097b4
sha512 089b3039b7c2580bd1220c85271fa1d8482b056009fcc41f4a27d78e9130b65ee7f4d37dff378c1aa82c6294d57c70bfb075be235537b936c54398ed755d432f
ripemd-160 a42f80ea8e5fa4b21b2a9abd352b75e5b5f5fc3d

20685440 as geometric shapes

Circle

Radius = n
Diameter 41370880
Circumference 129970452.68054
Area 1.3442480003481E+15

Sphere

Radius = n
Volume 3.7075148475095E+22
Surface area 5.3769920013925E+15
Circumference 129970452.68054

Square

Length = n
Perimeter 82741760
Area 427887427993600
Diagonal 29253629.791655

Cube

Length = n
Surface area 2567324567961600
Volume 8.8510397185159E+21
Space diagonal 35828233.056918

Equilateral Triangle

Length = n
Perimeter 62056320
Area 1.8528069130122E+14
Altitude 17914116.528459

Triangular Pyramid

Length = n
Surface area 1.8528069130122E+14
Volume 1.0431050342523E+21
Height 9751209.9305516