21787394 (number)

21787394 is an even 8-digits composite number following 21787393 and preceding 21787395. In scientific notation, it is written as 2.1787394 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 10419552 positive integers (up to 21787394) that are relatively prime to 21787394.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-seven thousand three hundred ninety-four

Notation

Scientific notation 2.1787394 × 10^7
Engineering notation 2.1787394 × 10^6

Prime Factorization of 21787394

Prime Factorization 2 × 23 × 23 × 20593

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 947278
Product of the distinct prime numbers

The prime factorization of 21787394 is 2 × 23 × 23 × 20593. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 8, 60, 132, 357, 7997, 7080, 14857, 721, 869491, 450027, 6433630, 3968588, 21895336, 1647482, 847813173, 51282704, 2829270385, 2223174162

Basic calculations (n = 21787394)

Multiplication

n×y
n×2 43574788
n×3 65362182
n×4 87149576
n×5 108936970

Division

n÷y
n÷2 10893697
n÷3 7262464.6666667
n÷3 5446848.5
n÷5 4357478.8

Exponentiation

ny
n2 474690537311236
n3 1.0342269764472E+22
n4 2.2533110621283E+29
n5 4.9093775915148E+36

Nth Root

y√n
2√n 4667.6968624794
3√n 279.29838795676
4√n 68.320544951569
5√n 29.352226999611

Divisors of 21787394

1, 2, 23, 46, 529, 1058, 20593, 41186, 473639, 947278, 10893697, 21787394

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 -21787393
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 21787394 can be divided by 12 positive divisors. The sum of these divisors (counting 21787394) is 1, the average is 0.083333333333333.

Base conversion 21787394

Base System Value
2 Binary 1010011000111001100000010
3 Ternary 1111222220200112
4 Quaternary 1103013030002
5 Quinary 21034144034
6 Senary 2054551322
8 Octal 123071402
10 Decimal 21787394
12 Duodecimal 7368542
16 Hexadecimal 14c7302
20 Vigesimal 6g389e
36 Base36 cyz9e

Cryptographic Hash Functions

md5 1361ef0ab08725f2e841d6b6301f5d5d
sha1 de405a8d249789d5b1f827d5ae0d58f318295bde
sha256 0713d7b920baec6d9b6e94fd25f720bbae43699e31d89355a5b4a95df54d4828
sha512 3d8f4ca8bde20f10c02062478f585b71c53622cef9232e2791d118942f91a9af7dacbb542650404e28250d19a7e6336a8a560f9d9fc28f79096dba86f90bae8b
ripemd-160 4a7037d751439de1c714dfe599677d3d23ff5efb

21787394 as geometric shapes

Circle

Radius = n
Diameter 43574788
Circumference 136894233.86253
Area 1.4912843047456E+15

Sphere

Radius = n
Volume 4.3321598284677E+22
Surface area 5.9651372189823E+15
Circumference 136894233.86253

Square

Length = n
Perimeter 87149576
Area 474690537311236
Diagonal 30812028.083566

Cube

Length = n
Surface area 2848143223867416
Volume 1.0342269764472E+22
Space diagonal 37736873.372521

Equilateral Triangle

Length = n
Perimeter 65362182
Area 2.0554703212381E+14
Altitude 18868436.686261

Triangular Pyramid

Length = n
Surface area 2.0554703212381E+14
Volume 1.2188481805531E+21
Height 10270676.027855