21091393 (number)

21091393 is an odd 8-digits composite number following 21091392 and preceding 21091394. In scientific notation, it is written as 2.1091393 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 20810400 positive integers (up to 21091393) that are relatively prime to 21091393.

Interesting facts

Basic properties

Name

Name twenty-one million ninety-one thousand three hundred ninety-three

Notation

Scientific notation 2.1091393 × 10^7
Engineering notation 2.1091393 × 10^6

Prime Factorization of 21091393

Prime Factorization 131 × 233 × 691

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21091393
Product of the distinct prime numbers

The prime factorization of 21091393 is 131 × 233 × 691. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21091393)

Multiplication

n×y
n×2 42182786
n×3 63274179
n×4 84365572
n×5 105456965

Division

n÷y
n÷2 10545696.5
n÷3 7030464.3333333
n÷3 5272848.25
n÷5 4218278.6

Exponentiation

ny
n2 444846858680449
n3 9.3824399212448E+21
n4 1.9788872767786E+29
n5 4.1737489257238E+36

Nth Root

y√n
2√n 4592.5366628912
3√n 276.29207074092
4√n 67.768257044808
5√n 29.162251617027

Divisors of 21091393

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21091392
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21091393 can be divided by 8 positive divisors. The sum of these divisors (counting 21091393) is 1, the average is 0.125.

Base conversion 21091393

Base System Value
2 Binary 1010000011101010001000001
3 Ternary 1110200112221201
4 Quaternary 1100131101001
5 Quinary 20344411033
6 Senary 2032021201
8 Octal 120352101
10 Decimal 21091393
12 Duodecimal 7091801
16 Hexadecimal 141d441
20 Vigesimal 6bg89d
36 Base36 ck281

Cryptographic Hash Functions

md5 392b45a8822b2273357e5e56d8c68513
sha1 f6b9e1df212905aec4e518d71004910bc8f5fbf9
sha256 12fe57278c3783deaad1410904de15a429ce84f9dad75346f0f2f9821cbcc84b
sha512 04cb4bd908e9136d812048a0cb76e15a0fd915bcab09be5a709c2e23bd91aa8dff564f3abd252d7d98a0e1d4c06b37438de09c3f9dc2c9cd0ed9c99185ee7097
ripemd-160 2d2d93696f910486873b75fc6cb6737c6ded65d8

21091393 as geometric shapes

Circle

Radius = n
Diameter 42182786
Circumference 132521130.60555
Area 1.397527623203E+15

Sphere

Radius = n
Volume 3.9301072439107E+22
Surface area 5.590110492812E+15
Circumference 132521130.60555

Square

Length = n
Perimeter 84365572
Area 444846858680449
Diagonal 29827734.029941

Cube

Length = n
Surface area 2669081152082694
Volume 9.3824399212448E+21
Space diagonal 36531364.278403

Equilateral Triangle

Length = n
Perimeter 63274179
Area 1.9262434020549E+14
Altitude 18265682.139201

Triangular Pyramid

Length = n
Surface area 1.9262434020549E+14
Volume 1.1057311487313E+21
Height 9942578.0099803