21105872 (number)

21105872 is an even 8-digits composite number following 21105871 and preceding 21105873. In scientific notation, it is written as 2.1105872 × 10^7. The sum of its digits is 26. It has a total of 6 prime factors and 20 positive divisors. There are 10353408 positive integers (up to 21105872) that are relatively prime to 21105872.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred five thousand eight hundred seventy-two

Notation

Scientific notation 2.1105872 × 10^7
Engineering notation 2.1105872 × 10^6

Prime Factorization of 21105872

Prime Factorization 2 × 2 × 2 × 2 × 53 × 24889

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2638234
Product of the distinct prime numbers

The prime factorization of 21105872 is 2 × 2 × 2 × 2 × 53 × 24889. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 8, 41, 3, 868, 174, 4568, 7934, 85861, 66417, 872963, 621922, 6738260, 7315185, 13143784, 79656553, 511432297, 843018860, 4880726784, 3374476352

Basic calculations (n = 21105872)

Multiplication

n×y
n×2 42211744
n×3 63317616
n×4 84423488
n×5 105529360

Division

n÷y
n÷2 10552936
n÷3 7035290.6666667
n÷3 5276468
n÷5 4221174.4

Exponentiation

ny
n2 445457832880384
n3 9.4017760021708E+21
n4 1.9843268087449E+29
n5 4.1880947631538E+36

Nth Root

y√n
2√n 4594.1127543847
3√n 276.35528006086
4√n 67.779884585212
5√n 29.166254428446

Divisors of 21105872

1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24889, 49778, 99556, 199112, 398224, 1319117, 2638234, 5276468, 10552936, 21105872

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21105871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21105872 can be divided by 20 positive divisors. The sum of these divisors (counting 21105872) is 1, the average is 0.05.

Base conversion 21105872

Base System Value
2 Binary 1010000100000110011010000
3 Ternary 1110201021210222
4 Quaternary 1100200303100
5 Quinary 20400341442
6 Senary 2032212212
8 Octal 120406320
10 Decimal 21105872
12 Duodecimal 709a068
16 Hexadecimal 1420cd0
20 Vigesimal 6bi4dc
36 Base36 ckde8

Cryptographic Hash Functions

md5 79776d5bcf1c67a6e1649bfd83e564df
sha1 5090e1d25b1ed4d748aa8752460df3dab6a9c9c7
sha256 bc1a9c4bef9f91e82f3273381091bf1fe5590d08702259de0378f3f0ed4c092d
sha512 f8503c005e969519504d6fa3463564362b8829c8c9243b26cf49d3190cc9e2449ffa7cd4594334ce1ba1bc9b40ad0b8a115577e29bd800166054c101bfd270ba
ripemd-160 5d3659bd651a2cd43c599fb77a834cd9d644141a

21105872 as geometric shapes

Circle

Radius = n
Diameter 42211744
Circumference 132612104.84561
Area 1.399447055261E+15

Sphere

Radius = n
Volume 3.9382067225489E+22
Surface area 5.5977882210442E+15
Circumference 132612104.84561

Square

Length = n
Perimeter 84423488
Area 445457832880384
Diagonal 29848210.428111

Cube

Length = n
Surface area 2672746997282304
Volume 9.4017760021708E+21
Space diagonal 36556442.642045

Equilateral Triangle

Length = n
Perimeter 63317616
Area 1.9288889979459E+14
Altitude 18278221.321023

Triangular Pyramid

Length = n
Surface area 1.9288889979459E+14
Volume 1.108009927722E+21
Height 9949403.4760369