21243856 (number)

21243856 is an even 8-digits composite number following 21243855 and preceding 21243857. In scientific notation, it is written as 2.1243856 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors. There are 10601696 positive integers (up to 21243856) that are relatively prime to 21243856.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-three thousand eight hundred fifty-six

Notation

Scientific notation 2.1243856 × 10^7
Engineering notation 2.1243856 × 10^6

Prime Factorization of 21243856

Prime Factorization 2 × 2 × 2 × 2 × 1787 × 743

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2655482
Product of the distinct prime numbers

The prime factorization of 21243856 is 2 × 2 × 2 × 2 × 1787 × 743. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 4, 85, 28, 673, 601, 3743, 1363, 40974, 46521, 424990, 223040, 1592020, 2800821, 80836306, 6610610, 971107849, 255592822, 8770553345, 7274033766

Basic calculations (n = 21243856)

Multiplication

n×y
n×2 42487712
n×3 63731568
n×4 84975424
n×5 106219280

Division

n÷y
n÷2 10621928
n÷3 7081285.3333333
n÷3 5310964
n÷5 4248771.2

Exponentiation

ny
n2 451301417748736
n3 9.58738233125E+21
n4 2.0367296966202E+29
n5 4.3267992385923E+36

Nth Root

y√n
2√n 4609.1057701034
3√n 276.95621562902
4√n 67.890395271374
5√n 29.204291172035

Divisors of 21243856

1, 2, 4, 8, 16, 743, 1486, 1787, 2972, 3574, 5944, 7148, 11888, 14296, 28592, 1327741, 2655482, 5310964, 10621928, 21243856

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 -21243855
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 21243856 can be divided by 20 positive divisors. The sum of these divisors (counting 21243856) is 1, the average is 0.05.

Base conversion 21243856

Base System Value
2 Binary 1010001000010011111010000
3 Ternary 1110222022002111
4 Quaternary 1101002133100
5 Quinary 20414300411
6 Senary 2035155104
8 Octal 121023720
10 Decimal 21243856
12 Duodecimal 7145a94
16 Hexadecimal 14427d0
20 Vigesimal 6cf9cg
36 Base36 cnbv4

Cryptographic Hash Functions

md5 52346ad499d47e59b9edd8702262eeb3
sha1 b4f995fee11f04cc83347fe51fb1a28d53e5da34
sha256 eab9f31125865d238a794fec7cb5f9f5da0be1c511939fe8a892dce241d19174
sha512 24009bb68301b00d28c3476c7fb5981f3d8c6687a9b7724bc1ce84b585259a9229976fc6d9debb2202003f518d3847608b7d360fa52c85b76b57f0725ac9f9d6
ripemd-160 2ab3fe3d34c72a0eca6368c0818a2ebb9c22b5a2

21243856 as geometric shapes

Circle

Radius = n
Diameter 42487712
Circumference 133479083.88704
Area 1.4178052185541E+15

Sphere

Radius = n
Volume 4.0159533198682E+22
Surface area 5.6712208742163E+15
Circumference 133479083.88704

Square

Length = n
Perimeter 84975424
Area 451301417748736
Diagonal 30043349.272301

Cube

Length = n
Surface area 2707808506492416
Volume 9.58738233125E+21
Space diagonal 36795437.940677

Equilateral Triangle

Length = n
Perimeter 63731568
Area 1.9541924626717E+14
Altitude 18397718.970338

Triangular Pyramid

Length = n
Surface area 1.9541924626717E+14
Volume 1.1298838433758E+21
Height 10014449.757434