21086720 (number)

21086720 is an even 8-digits composite number following 21086719 and preceding 21086721. In scientific notation, it is written as 2.1086720 × 10^7. The sum of its digits is 26. It has a total of 11 prime factors and 40 positive divisors. There are 8433664 positive integers (up to 21086720) that are relatively prime to 21086720.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-six thousand seven hundred twenty

Notation

Scientific notation 2.1086720 × 10^7
Engineering notation 2.1086720 × 10^6

Prime Factorization of 21086720

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 8237

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 11
Total number of prime factors
rad Radical 82370
Product of the distinct prime numbers

The prime factorization of 21086720 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 8237. Since it has a total of 11 prime factors.

Most popular turbo-numbers

7, 6, 10, 12, 79, 220, 4937, 3844, 71432, 45106, 846617, 213861, 3453945, 9035237, 26164404, 69092543, 317486298, 868387844, 654458435, 4437166539

Basic calculations (n = 21086720)

Multiplication

n×y
n×2 42173440
n×3 63260160
n×4 84346880
n×5 105433600

Division

n÷y
n÷2 10543360
n÷3 7028906.6666667
n÷3 5271680
n÷5 4217344

Exponentiation

ny
n2 444649760358400
n3 9.3762049947447E+21
n4 1.9771340938678E+29
n5 4.1691273039845E+36

Nth Root

y√n
2√n 4592.0278744799
3√n 276.27166418281
4√n 67.764503056393
5√n 29.160959267294

Divisors of 21086720

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8237, 16474, 32948, 41185, 65896, 82370, 131792, 164740, 263584, 329480, 527168, 658960, 1054336, 1317920, 2108672, 2635840, 4217344, 5271680, 10543360, 21086720

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 -21086719
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 21086720 can be divided by 40 positive divisors. The sum of these divisors (counting 21086720) is 1, the average is 0.025.

Base conversion 21086720

Base System Value
2 Binary 1010000011100001000000000
3 Ternary 1110200022112122
4 Quaternary 1100130020000
5 Quinary 20344233340
6 Senary 2031543412
8 Octal 120341000
10 Decimal 21086720
12 Duodecimal 708ab68
16 Hexadecimal 141c200
20 Vigesimal 6bfgg0
36 Base36 cjym8

Cryptographic Hash Functions

md5 54b0610025e72532496c09b221344e65
sha1 35a65e35e4a61966e336e4bf1f654b68ca0b4ceb
sha256 aa5764ac1d4584ccc8f9f09532fad662ac4a2751b5d1e231c274026931cea119
sha512 6879f0dcd63eb7cafb0dbb8ab75d84553cb01b27a34767917666b9b7a9fc38c1ec8e6a1649c065a157fbc30c9fb15671e7224c4a995363d6a22be641ca90f4d7
ripemd-160 b4cca16e68a2294faafb74190e335013383512d3

21086720 as geometric shapes

Circle

Radius = n
Diameter 42173440
Circumference 132491769.28061
Area 1.3969084205624E+15

Sphere

Radius = n
Volume 3.9274955640056E+22
Surface area 5.5876336822496E+15
Circumference 132491769.28061

Square

Length = n
Perimeter 84346880
Area 444649760358400
Diagonal 29821125.409964

Cube

Length = n
Surface area 2667898562150400
Volume 9.3762049947447E+21
Space diagonal 36523270.404979

Equilateral Triangle

Length = n
Perimeter 63260160
Area 1.9253899412852E+14
Altitude 18261635.202489

Triangular Pyramid

Length = n
Surface area 1.9253899412852E+14
Volume 1.1049963555965E+21
Height 9940375.1366547