21691284 (number)

21691284 is an even 8-digits composite number following 21691283 and preceding 21691285. In scientific notation, it is written as 2.1691284 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors. There are 7230424 positive integers (up to 21691284) that are relatively prime to 21691284.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-one thousand two hundred eighty-four

Notation

Scientific notation 2.1691284 × 10^7
Engineering notation 2.1691284 × 10^6

Prime Factorization of 21691284

Prime Factorization 2 × 2 × 3 × 1807607

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10845642
Product of the distinct prime numbers

The prime factorization of 21691284 is 2 × 2 × 3 × 1807607. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21691284)

Multiplication

n×y
n×2 43382568
n×3 65073852
n×4 86765136
n×5 108456420

Division

n÷y
n÷2 10845642
n÷3 7230428
n÷3 5422821
n÷5 4338256.8

Exponentiation

ny
n2 470511801568656
n3 1.0206005113177E+22
n4 2.2138135541538E+29
n5 4.80204585262E+36

Nth Root

y√n
2√n 4657.390256356
3√n 278.88709605456
4√n 68.24507496044
5√n 29.326285085669

Divisors of 21691284

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 -21691283
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 21691284 can be divided by 12 positive divisors. The sum of these divisors (counting 21691284) is 1, the average is 0.083333333333333.

Base conversion 21691284

Base System Value
2 Binary 1010010101111101110010100
3 Ternary 1111211000211220
4 Quaternary 1102233232110
5 Quinary 21023110114
6 Senary 2052530340
8 Octal 122575624
10 Decimal 21691284
12 Duodecimal 73209b0
16 Hexadecimal 14afb94
20 Vigesimal 6fb844
36 Base36 cwx3o

Cryptographic Hash Functions

md5 e4df07a7a4fefc927ca04f6b4749a54a
sha1 16d9446daf37c44f69fae8e44d858675c5b7a642
sha256 f221599d77e29fd27d753e7fd930410bb5be4a31f911a44a477666ece59d5e1b
sha512 e4f52fdab1151cdeba647adf0558bdfb31ddb300a9a5e85b995ec8ed27a21115bee6a0f35cfb449b30192c8843f39cfa6c99480f23dea06527ea68d65c57da38
ripemd-160 299acf3d6a701710cbe81fe6e0ef781e58555ae6

21691284 as geometric shapes

Circle

Radius = n
Diameter 43382568
Circumference 136290356.92266
Area 1.4781564192354E+15

Sphere

Radius = n
Volume 4.2750814248077E+22
Surface area 5.9126256769416E+15
Circumference 136290356.92266

Square

Length = n
Perimeter 86765136
Area 470511801568656
Diagonal 30676108.018087

Cube

Length = n
Surface area 2823070809411936
Volume 1.0206005113177E+22
Space diagonal 37570405.969406

Equilateral Triangle

Length = n
Perimeter 65073852
Area 2.0373758646942E+14
Altitude 18785202.984703

Triangular Pyramid

Length = n
Surface area 2.0373758646942E+14
Volume 1.202789237392E+21
Height 10225369.339362