21307856 (number)

21307856 is an even 8-digits composite number following 21307855 and preceding 21307857. In scientific notation, it is written as 2.1307856 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 20 positive divisors. There are 10365696 positive integers (up to 21307856) that are relatively prime to 21307856.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred seven thousand eight hundred fifty-six

Notation

Scientific notation 2.1307856 × 10^7
Engineering notation 2.1307856 × 10^6

Prime Factorization of 21307856

Prime Factorization 2 × 2 × 2 × 2 × 37 × 35993

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2663482
Product of the distinct prime numbers

The prime factorization of 21307856 is 2 × 2 × 2 × 2 × 37 × 35993. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21307856)

Multiplication

n×y
n×2 42615712
n×3 63923568
n×4 85231424
n×5 106539280

Division

n÷y
n÷2 10653928
n÷3 7102618.6666667
n÷3 5326964
n÷5 4261571.2

Exponentiation

ny
n2 454024727316736
n3 9.6742935101043E+21
n4 2.0613845301504E+29
n5 4.3923684729072E+36

Nth Root

y√n
2√n 4616.043327353
3√n 277.23405953327
4√n 67.941469864531
5√n 29.221866384005

Divisors of 21307856

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 -21307855
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 21307856 can be divided by 20 positive divisors. The sum of these divisors (counting 21307856) is 1, the average is 0.05.

Base conversion 21307856

Base System Value
2 Binary 1010001010010000111010000
3 Ternary 1111002112212212
4 Quaternary 1101102013100
5 Quinary 20423322411
6 Senary 2040411252
8 Octal 121220720
10 Decimal 21307856
12 Duodecimal 7176b28
16 Hexadecimal 14521d0
20 Vigesimal 6d39cg
36 Base36 cop8w

Cryptographic Hash Functions

md5 69244809e83b98ef5f61d337b2d45b5b
sha1 54f6a0a2505baa8db5cbc654dcbd3e274c444c9b
sha256 846b3b0591fab6dfa7644183b36847642f01f241092ee98c38ac2bac0dfafa17
sha512 6f61b785da6a714961a59ad197d1eb39ae067a9bf35245d28598451218fa320deebc8b578237376e43b33f4cfdbd05af340ea1686533c7968f24005def5812ea
ripemd-160 db9e88ffa1ea21405b9b33817c5671ab1a13c72c

21307856 as geometric shapes

Circle

Radius = n
Diameter 42615712
Circumference 133881207.7467
Area 1.4263607478864E+15

Sphere

Radius = n
Volume 4.0523585893353E+22
Surface area 5.7054429915455E+15
Circumference 133881207.7467

Square

Length = n
Perimeter 85231424
Area 454024727316736
Diagonal 30133858.940293

Cube

Length = n
Surface area 2724148363900416
Volume 9.6742935101043E+21
Space diagonal 36906289.192361

Equilateral Triangle

Length = n
Perimeter 63923568
Area 1.965984739013E+14
Altitude 18453144.596181

Triangular Pyramid

Length = n
Surface area 1.965984739013E+14
Volume 1.1401264240306E+21
Height 10044619.646764