21085920 (number)

21085920 is an even 8-digits composite number following 21085919 and preceding 21085921. In scientific notation, it is written as 2.1085920 × 10^7. The sum of its digits is 27. It has a total of 8 prime factors and 48 positive divisors. There are 5619456 positive integers (up to 21085920) that are relatively prime to 21085920.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-five thousand nine hundred twenty

Notation

Scientific notation 2.1085920 × 10^7
Engineering notation 2.1085920 × 10^6

Prime Factorization of 21085920

Prime Factorization 2 × 2 × 2 × 2 × 2 × 27 × 15 × 1627

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 1317870
Product of the distinct prime numbers

The prime factorization of 21085920 is 2 × 2 × 2 × 2 × 2 × 27 × 15 × 1627. Since it has a total of 8 prime factors.

Most popular turbo-numbers

5, 9, 31, 53, 234, 555, 5134, 651, 81625, 31517, 572659, 466856, 7266599, 2013120, 26351714, 25336347, 556379414, 817725052, 2052225583, 9052156362

Basic calculations (n = 21085920)

Multiplication

n×y
n×2 42171840
n×3 63257760
n×4 84343680
n×5 105429600

Division

n÷y
n÷2 10542960
n÷3 7028640
n÷3 5271480
n÷5 4217184

Exponentiation

ny
n2 444616022246400
n3 9.3751378758058E+21
n4 1.9768340723821E+29
n5 4.1683365103523E+36

Nth Root

y√n
2√n 4591.9407661685
3√n 276.26817035468
4√n 67.763860325165
5√n 29.160737998918

Divisors of 21085920

1, 2, 4, 8, 15, 16, 27, 30, 32, 54, 60, 108, 120, 216, 240, 405, 432, 480, 810, 864, 1620, 1627, 3240, 3254, 6480, 6508, 12960, 13016, 24405, 26032, 43929, 48810, 52064, 87858, 97620, 175716, 195240, 351432, 390480, 658935, 702864, 780960, 1317870, 1405728, 2635740, 5271480, 10542960, 21085920

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21085919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21085920 can be divided by 48 positive divisors. The sum of these divisors (counting 21085920) is 1, the average is 0.020833333333333.

Base conversion 21085920

Base System Value
2 Binary 1010000011011111011100000
3 Ternary 1110200021110000
4 Quaternary 1100123323200
5 Quinary 20344222140
6 Senary 2031540000
8 Octal 120337340
10 Decimal 21085920
12 Duodecimal 708a600
16 Hexadecimal 141bee0
20 Vigesimal 6bfeg0
36 Base36 cjy00

Cryptographic Hash Functions

md5 e0cd2be98b9ef7abbba1b855818af8bb
sha1 5d01d3bc4c217630e9c891dc998f6e545159cac7
sha256 acf3a1b0176e1fd4bda8605ec70498c11cee36cd76a613bdb00ca3285c057256
sha512 40c93018df058f0c05d0c2615592b5c2655eb3ee23ba1c85d6bd4581c895c1bff6cb0c93017021934c390305d650d4083d5bbf27b1e2cd292a35c862e334bd95
ripemd-160 6c9e502250d45a4c66181b300d9b90ca0851d264

21085920 as geometric shapes

Circle

Radius = n
Diameter 42171840
Circumference 132486742.73236
Area 1.3968024291576E+15

Sphere

Radius = n
Volume 3.9270485702697E+22
Surface area 5.5872097166304E+15
Circumference 132486742.73236

Square

Length = n
Perimeter 84343680
Area 444616022246400
Diagonal 29819994.039114

Cube

Length = n
Surface area 2667696133478400
Volume 9.3751378758058E+21
Space diagonal 36521884.764333

Equilateral Triangle

Length = n
Perimeter 63257760
Area 1.9252438509748E+14
Altitude 18260942.382166

Triangular Pyramid

Length = n
Surface area 1.9252438509748E+14
Volume 1.1048705944235E+21
Height 9939998.013038