21105906 (number)

21105906 is an even 8-digits composite number following 21105905 and preceding 21105907. In scientific notation, it is written as 2.1105906 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 6938784 positive integers (up to 21105906) that are relatively prime to 21105906.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105906 × 10^7
Engineering notation 2.1105906 × 10^6

Prime Factorization of 21105906

Prime Factorization 2 × 3 × 73 × 48187

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21105906
Product of the distinct prime numbers

The prime factorization of 21105906 is 2 × 3 × 73 × 48187. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 26, 60, 685, 951, 4179, 5258, 74814, 65079, 365201, 261159, 1490274, 3487579, 46391277, 91097506, 636934605, 17906047, 9776981298, 1201497539

Basic calculations (n = 21105906)

Multiplication

n×y
n×2 42211812
n×3 63317718
n×4 84423624
n×5 105529530

Division

n÷y
n÷2 10552953
n÷3 7035302
n÷3 5276476.5
n÷5 4221181.2

Exponentiation

ny
n2 445459268080836
n3 9.4018214389429E+21
n4 1.9843395951911E+29
n5 4.1881284968182E+36

Nth Root

y√n
2√n 4594.1164547713
3√n 276.35542845676
4√n 67.779911882292
5√n 29.166263825376

Divisors of 21105906

1, 2, 3, 6, 73, 146, 219, 438, 48187, 96374, 144561, 289122, 3517651, 7035302, 10552953, 21105906

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 -21105905
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 21105906 can be divided by 16 positive divisors. The sum of these divisors (counting 21105906) is 1, the average is 0.0625.

Base conversion 21105906

Base System Value
2 Binary 1010000100000110011110010
3 Ternary 1110201021212020
4 Quaternary 1100200303302
5 Quinary 20400342111
6 Senary 2032212310
8 Octal 120406362
10 Decimal 21105906
12 Duodecimal 709a096
16 Hexadecimal 1420cf2
20 Vigesimal 6bi4f6
36 Base36 ckdf6

Cryptographic Hash Functions

md5 68ee68c64849fa9086d01be66cc8ada7
sha1 49288dac642b3cee07b1466a1fb25274fdd40598
sha256 dd161ae03882774f81f746e23ae2c9d03986cee00dc570424299a256a290ee0e
sha512 b7c482e7b47d67040bbf5c85b9a30e2266a0d25621bf0082ba33c8980daa47bdcd32a4aa886dfc3841c7c51434fc505fc11ef7a19444653416a38896b9c8da47
ripemd-160 cfe877ce48f616753fb6f0d5a37b6f0e0a5457a1

21105906 as geometric shapes

Circle

Radius = n
Diameter 42211812
Circumference 132612318.47391
Area 1.3994515640762E+15

Sphere

Radius = n
Volume 3.9382257550595E+22
Surface area 5.597806256305E+15
Circumference 132612318.47391

Square

Length = n
Perimeter 84423624
Area 445459268080836
Diagonal 29848258.511372

Cube

Length = n
Surface area 2672755608485016
Volume 9.4018214389429E+21
Space diagonal 36556501.531773

Equilateral Triangle

Length = n
Perimeter 63317718
Area 1.9288952125461E+14
Altitude 18278250.765886

Triangular Pyramid

Length = n
Surface area 1.9288952125461E+14
Volume 1.1080152824969E+21
Height 9949419.5037906