20687440 (number)

20687440 is an even 8-digits composite number following 20687439 and preceding 20687441. In scientific notation, it is written as 2.0687440 × 10^7. The sum of its digits is 31. It has a total of 7 prime factors and 40 positive divisors. There are 7741440 positive integers (up to 20687440) that are relatively prime to 20687440.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0687440 × 10^7
Engineering notation 2.0687440 × 10^6

Prime Factorization of 20687440

Prime Factorization 2 × 2 × 2 × 2 × 5 × 1073 × 241

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2585930
Product of the distinct prime numbers

The prime factorization of 20687440 is 2 × 2 × 2 × 2 × 5 × 1073 × 241. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 8, 44, 90, 279, 82, 1324, 5054, 77213, 22915, 570562, 309925, 1969863, 276496, 71525723, 2887857, 738752996, 473367014, 3255513076, 2962946684

Basic calculations (n = 20687440)

Multiplication

n×y
n×2 41374880
n×3 62062320
n×4 82749760
n×5 103437200

Division

n÷y
n÷2 10343720
n÷3 6895813.3333333
n÷3 5171860
n÷5 4137488

Exponentiation

ny
n2 427970173753600
n3 8.8536072913172E+21
n4 1.8315846962269E+29
n5 3.7890798508112E+36

Nth Root

y√n
2√n 4548.3447538638
3√n 274.51679332077
4√n 67.441417199402
5√n 29.04967983768

Divisors of 20687440

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1073, 1205, 1928, 2146, 2410, 3856, 4292, 4820, 5365, 8584, 9640, 10730, 17168, 19280, 21460, 42920, 85840, 258593, 517186, 1034372, 1292965, 2068744, 2585930, 4137488, 5171860, 10343720, 20687440

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20687439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20687440 can be divided by 40 positive divisors. The sum of these divisors (counting 20687440) is 1, the average is 0.025.

Base conversion 20687440

Base System Value
2 Binary 1001110111010101001010000
3 Ternary 1102221000211111
4 Quaternary 1032322221100
5 Quinary 20243444230
6 Senary 2015223104
8 Octal 116725120
10 Decimal 20687440
12 Duodecimal 6b17a94
16 Hexadecimal 13baa50
20 Vigesimal 695ic0
36 Base36 cbej4

Cryptographic Hash Functions

md5 376a567b839fd616009e2261d3987b65
sha1 e966192f95c5cf9904dca89804a81e465ccc170a
sha256 0a7055844bd38761d01b3defe751a2dac6f11b283a0879dd9b864fec215aa4c7
sha512 740b09aa78af38369e14fe15882aa4a8b1bde4e7da81d92262b28ea7544a3cdabc41a5a387fabf3cecf9aeb7ba0d07211cbb4a906037ead6bd9e55b11ebc22c6
ripemd-160 e79e5b4a4e17b5a0e3f1154f71fa29c6ec3d7c9c

20687440 as geometric shapes

Circle

Radius = n
Diameter 41374880
Circumference 129983019.05116
Area 1.3445079538199E+15

Sphere

Radius = n
Volume 3.7085903498895E+22
Surface area 5.3780318152794E+15
Circumference 129983019.05116

Square

Length = n
Perimeter 82749760
Area 427970173753600
Diagonal 29256458.21878

Cube

Length = n
Surface area 2567821042521600
Volume 8.8536072913172E+21
Space diagonal 35831697.158533

Equilateral Triangle

Length = n
Perimeter 62062320
Area 1.8531652126633E+14
Altitude 17915848.579266

Triangular Pyramid

Length = n
Surface area 1.8531652126633E+14
Volume 1.0434076256088E+21
Height 9752152.7395932