21091005 (number)

21091005 is an odd 8-digits composite number following 21091004 and preceding 21091006. In scientific notation, it is written as 2.1091005 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 10039680 positive integers (up to 21091005) that are relatively prime to 21091005.

Interesting facts

Basic properties

Name

Name twenty-one million ninety-one thousand five

Notation

Scientific notation 2.1091005 × 10^7
Engineering notation 2.1091005 × 10^6

Prime Factorization of 21091005

Prime Factorization 65 × 9 × 31 × 1163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21091005
Product of the distinct prime numbers

The prime factorization of 21091005 is 65 × 9 × 31 × 1163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 83, 10, 218, 269, 4914, 6143, 67020, 18305, 756016, 532889, 3047102, 8507338, 83680103, 2716701, 104731776, 49667915, 1030136939, 2315837916

Basic calculations (n = 21091005)

Multiplication

n×y
n×2 42182010
n×3 63273015
n×4 84364020
n×5 105455025

Division

n÷y
n÷2 10545502.5
n÷3 7030335
n÷3 5272751.25
n÷5 4218201

Exponentiation

ny
n2 444830491910025
n3 9.3819221290268E+21
n4 1.9787416653291E+29
n5 4.1733650357165E+36

Nth Root

y√n
2√n 4592.494420247
3√n 276.29037649562
4√n 67.767945374248
5√n 29.162144321726

Divisors of 21091005

1, 9, 31, 65, 279, 585, 1163, 2015, 10467, 18135, 36053, 75595, 324477, 680355, 2343445, 21091005

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21091004
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21091005 can be divided by 16 positive divisors. The sum of these divisors (counting 21091005) is 1, the average is 0.0625.

Base conversion 21091005

Base System Value
2 Binary 1010000011101001010111101
3 Ternary 1110200112102100
4 Quaternary 1100131022331
5 Quinary 20344403010
6 Senary 2032015313
8 Octal 120351275
10 Decimal 21091005
12 Duodecimal 7091539
16 Hexadecimal 141d2bd
20 Vigesimal 6bg7a5
36 Base36 ck1x9

Cryptographic Hash Functions

md5 43353d4e07ba240b135f8abd182f75dd
sha1 a7042d7c07a870cef29c86386322fbd01a1d3d35
sha256 f3f9957da56b73bd6d9d457868ddd6ad9d1e9c7870299da41895f37df985c15a
sha512 f5c79d66e353c65d0498dff53455a24c46cdd73b24a56276cf4e9c6dd50dd66487c1fd2d420e38be656055cbcfa7233e7787a20bb601ff64fb95f03f87104133
ripemd-160 0e7330da3b23f4d4bfaeea1409387e0962f54cc4

21091005 as geometric shapes

Circle

Radius = n
Diameter 42182010
Circumference 132518692.72965
Area 1.3974762054773E+15

Sphere

Radius = n
Volume 3.9298903516136E+22
Surface area 5.5899048219091E+15
Circumference 132518692.72965

Square

Length = n
Perimeter 84364020
Area 444830491910025
Diagonal 29827185.315079

Cube

Length = n
Surface area 2668982951460150
Volume 9.3819221290268E+21
Space diagonal 36530692.242689

Equilateral Triangle

Length = n
Perimeter 63273015
Area 1.92617253186E+14
Altitude 18265346.121345

Triangular Pyramid

Length = n
Surface area 1.92617253186E+14
Volume 1.1056701263332E+21
Height 9942395.1050263