21861284 (number)

21861284 is an even 8-digits composite number following 21861283 and preceding 21861285. In scientific notation, it is written as 2.1861284 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 10907400 positive integers (up to 21861284) that are relatively prime to 21861284.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand two hundred eighty-four

Notation

Scientific notation 2.1861284 × 10^7
Engineering notation 2.1861284 × 10^6

Prime Factorization of 21861284

Prime Factorization 2 × 2 × 491 × 11131

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10930642
Product of the distinct prime numbers

The prime factorization of 21861284 is 2 × 2 × 491 × 11131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 7, 49, 833, 856, 1140, 7577, 78212, 82673, 314789, 494132, 5334213, 8478223, 88505916, 5239438, 481372388, 328895135, 9041802528, 738607007

Basic calculations (n = 21861284)

Multiplication

n×y
n×2 43722568
n×3 65583852
n×4 87445136
n×5 109306420

Division

n÷y
n÷2 10930642
n÷3 7287094.6666667
n÷3 5465321
n÷5 4372256.8

Exponentiation

ny
n2 477915738128656
n3 1.04478516793E+22
n4 2.2840345275106E+29
n5 4.9931927471715E+36

Nth Root

y√n
2√n 4675.6052014686
3√n 279.61377020371
4√n 68.378397184115
5√n 29.372109137513

Divisors of 21861284

1, 2, 4, 491, 982, 1964, 11131, 22262, 44524, 5465321, 10930642, 21861284

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 -21861283
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 21861284 can be divided by 12 positive divisors. The sum of these divisors (counting 21861284) is 1, the average is 0.083333333333333.

Base conversion 21861284

Base System Value
2 Binary 1010011011001001110100100
3 Ternary 1112010200001012
4 Quaternary 1103121032210
5 Quinary 21044030114
6 Senary 2100321352
8 Octal 123311644
10 Decimal 21861284
12 Duodecimal 73a3258
16 Hexadecimal 14d93a4
20 Vigesimal 6gcd44
36 Base36 d0k9w

Cryptographic Hash Functions

md5 57b364265ac1c3874122d81057f65bf5
sha1 b929d9c5bc6b2e81b1b8d42f08ce5e6da7545917
sha256 c26381b0af4151801af80b80e41cd4af15507c3bc20abb6e2a5b707c81457214
sha512 f5e5d3444461ba4fd98136d8fa18785b9cfb4184fd8085b73713538c0d7d47199ef8c4b3c0fe8df0cca14965ed14f24346bdcd7537aa237e522216f324f10797
ripemd-160 a051f9f8e803d16de3feac65322f11b0f9e1a544

21861284 as geometric shapes

Circle

Radius = n
Diameter 43722568
Circumference 137358498.42488
Area 1.5014165719399E+15

Sphere

Radius = n
Volume 4.3763858775314E+22
Surface area 6.0056662877597E+15
Circumference 137358498.42488

Square

Length = n
Perimeter 87445136
Area 477915738128656
Diagonal 30916524.32369

Cube

Length = n
Surface area 2867494428771936
Volume 1.04478516793E+22
Space diagonal 37864854.606693

Equilateral Triangle

Length = n
Perimeter 65583852
Area 2.069435850439E+14
Altitude 18932427.303346

Triangular Pyramid

Length = n
Surface area 2.069435850439E+14
Volume 1.2312911285441E+21
Height 10305508.107897