21861243 (number)

21861243 is an odd 8-digits composite number following 21861242 and preceding 21861244. In scientific notation, it is written as 2.1861243 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 14234976 positive integers (up to 21861243) that are relatively prime to 21861243.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand two hundred forty-three

Notation

Scientific notation 2.1861243 × 10^7
Engineering notation 2.1861243 × 10^6

Prime Factorization of 21861243

Prime Factorization 3 × 3 × 43 × 56489

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7287081
Product of the distinct prime numbers

The prime factorization of 21861243 is 3 × 3 × 43 × 56489. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 67, 95, 438, 650, 799, 7290, 875, 25740, 163544, 760190, 3791080, 8698510, 76936991, 83384828, 653713904, 834387332, 8784485569, 4152692395

Basic calculations (n = 21861243)

Multiplication

n×y
n×2 43722486
n×3 65583729
n×4 87444972
n×5 109306215

Division

n÷y
n÷2 10930621.5
n÷3 7287081
n÷3 5465310.75
n÷5 4372248.6

Exponentiation

ny
n2 477913945505049
n3 1.0447792895775E+22
n4 2.284017393082E+29
n5 4.9931459246393E+36

Nth Root

y√n
2√n 4675.6008170074
3√n 279.61359540197
4√n 68.378365123827
5√n 29.372098120252

Divisors of 21861243

1, 3, 9, 43, 129, 387, 56489, 169467, 508401, 2429027, 7287081, 21861243

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21861242
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21861243 can be divided by 12 positive divisors. The sum of these divisors (counting 21861243) is 1, the average is 0.083333333333333.

Base conversion 21861243

Base System Value
2 Binary 1010011011001001101111011
3 Ternary 1112010122222200
4 Quaternary 1103121031323
5 Quinary 21044024433
6 Senary 2100321243
8 Octal 123311573
10 Decimal 21861243
12 Duodecimal 73a3223
16 Hexadecimal 14d937b
20 Vigesimal 6gcd23
36 Base36 d0k8r

Cryptographic Hash Functions

md5 38985e7c04c47ce38c0a6242ffefe7f3
sha1 91adf520a3ccad02ef497fddce586757483f63a6
sha256 8cf56ded3689a613999b64e0620bc02162dd90d21586539d21e4f93ed094a1c6
sha512 04905a0524a6a189dc82a45ca689647b0afff1b33e6f9b695b7167958d2a3b89d164ec38f00a1974a95f7a59e02f96111cead923fd848e4d77623f057ddf4397
ripemd-160 79e6e6c1af14b1e1a6162970485b6ee01c883976

21861243 as geometric shapes

Circle

Radius = n
Diameter 43722486
Circumference 137358240.81428
Area 1.5014109402468E+15

Sphere

Radius = n
Volume 4.3763612543458E+22
Surface area 6.0056437609871E+15
Circumference 137358240.81428

Square

Length = n
Perimeter 87444972
Area 477913945505049
Diagonal 30916466.340934

Cube

Length = n
Surface area 2867483673030294
Volume 1.0447792895775E+22
Space diagonal 37864783.592609

Equilateral Triangle

Length = n
Perimeter 65583729
Area 2.0694280881511E+14
Altitude 18932391.796305

Triangular Pyramid

Length = n
Surface area 2.0694280881511E+14
Volume 1.2312842008391E+21
Height 10305488.780311