21105904 (number)

21105904 is an even 8-digits composite number following 21105903 and preceding 21105905. In scientific notation, it is written as 2.1105904 × 10^7. The sum of its digits is 22. It has a total of 7 prime factors and 40 positive divisors. There are 9958080 positive integers (up to 21105904) that are relatively prime to 21105904.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105904 × 10^7
Engineering notation 2.1105904 × 10^6

Prime Factorization of 21105904

Prime Factorization 2 × 2 × 2 × 2 × 23 × 83 × 691

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2638238
Product of the distinct prime numbers

The prime factorization of 21105904 is 2 × 2 × 2 × 2 × 23 × 83 × 691. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 7, 46, 3, 20, 884, 9926, 1425, 57849, 73247, 766426, 400802, 1969798, 4534027, 81337263, 38464790, 580646572, 165332348, 5786138207, 3534300007

Basic calculations (n = 21105904)

Multiplication

n×y
n×2 42211808
n×3 63317712
n×4 84423616
n×5 105529520

Division

n÷y
n÷2 10552952
n÷3 7035301.3333333
n÷3 5276476
n÷5 4221180.8

Exponentiation

ny
n2 445459183657216
n3 9.4018187661876E+21
n4 1.9843388430455E+29
n5 4.188126512479E+36

Nth Root

y√n
2√n 4594.1162371015
3√n 276.35541972759
4√n 67.779910276582
5√n 29.166263272616

Divisors of 21105904

1, 2, 4, 8, 16, 23, 46, 83, 92, 166, 184, 332, 368, 664, 691, 1328, 1382, 1909, 2764, 3818, 5528, 7636, 11056, 15272, 15893, 30544, 31786, 57353, 63572, 114706, 127144, 229412, 254288, 458824, 917648, 1319119, 2638238, 5276476, 10552952, 21105904

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 -21105903
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 21105904 can be divided by 40 positive divisors. The sum of these divisors (counting 21105904) is 1, the average is 0.025.

Base conversion 21105904

Base System Value
2 Binary 1010000100000110011110000
3 Ternary 1110201021212011
4 Quaternary 1100200303300
5 Quinary 20400342104
6 Senary 2032212304
8 Octal 120406360
10 Decimal 21105904
12 Duodecimal 709a094
16 Hexadecimal 1420cf0
20 Vigesimal 6bi4f4
36 Base36 ckdf4

Cryptographic Hash Functions

md5 be6c9fc9a4d57eb0b320a651f879a3fd
sha1 20e78ae1866d8a4d9ca39da30f60074b79d4d89b
sha256 d6556e0e70a0cc21222aa7acaff916587d2d763ae2da4ca91d8dbcb8079c6516
sha512 7ed327fb35af65cc739905b7f4951ed56f1b3b6a3b262254790c9210b4c2be783ad8f96b6afd6c55798cd5230c015b048bef83b1a20dc22bf07ef2bba11f0943
ripemd-160 800845ae7f33752973c532d7a8a690b4e328fab2

21105904 as geometric shapes

Circle

Radius = n
Diameter 42211808
Circumference 132612305.90754
Area 1.3994512988516E+15

Sphere

Radius = n
Volume 3.9382246354983E+22
Surface area 5.5978051954065E+15
Circumference 132612305.90754

Square

Length = n
Perimeter 84423616
Area 445459183657216
Diagonal 29848255.682945

Cube

Length = n
Surface area 2672755101943296
Volume 9.4018187661876E+21
Space diagonal 36556498.067671

Equilateral Triangle

Length = n
Perimeter 63317712
Area 1.9288948469811E+14
Altitude 18278249.033836

Triangular Pyramid

Length = n
Surface area 1.9288948469811E+14
Volume 1.1080149675097E+21
Height 9949418.5609815