21091390 (number)

21091390 is an even 8-digits composite number following 21091389 and preceding 21091391. In scientific notation, it is written as 2.1091390 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 7940224 positive integers (up to 21091390) that are relatively prime to 21091390.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1091390 × 10^7
Engineering notation 2.1091390 × 10^6

Prime Factorization of 21091390

Prime Factorization 2 × 5 × 17 × 124067

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21091390
Product of the distinct prime numbers

The prime factorization of 21091390 is 2 × 5 × 17 × 124067. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 63, 66, 600, 162, 3160, 7645, 72469, 22886, 505250, 146960, 7980317, 3152106, 80698985, 77025752, 625423258, 422240595, 8748840011, 9566369165

Basic calculations (n = 21091390)

Multiplication

n×y
n×2 42182780
n×3 63274170
n×4 84365560
n×5 105456950

Division

n÷y
n÷2 10545695
n÷3 7030463.3333333
n÷3 5272847.5
n÷5 4218278

Exponentiation

ny
n2 444846732132100
n3 9.3824359176237E+21
n4 1.9788861508861E+29
n5 4.1737459573937E+36

Nth Root

y√n
2√n 4592.5363362743
3√n 276.29205764117
4√n 67.768254635001
5√n 29.162250787431

Divisors of 21091390

1, 2, 5, 10, 17, 34, 85, 170, 124067, 248134, 620335, 1240670, 2109139, 4218278, 10545695, 21091390

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21091389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21091390 can be divided by 16 positive divisors. The sum of these divisors (counting 21091390) is 1, the average is 0.0625.

Base conversion 21091390

Base System Value
2 Binary 1010000011101010000111110
3 Ternary 1110200112221121
4 Quaternary 1100131100332
5 Quinary 20344411030
6 Senary 2032021154
8 Octal 120352076
10 Decimal 21091390
12 Duodecimal 70917ba
16 Hexadecimal 141d43e
20 Vigesimal 6bg89a
36 Base36 ck27y

Cryptographic Hash Functions

md5 4dd9562fdf3436b08683a3153b93103a
sha1 43d7b16e5494ef965408bbf83f2ef1ed9f544a88
sha256 b600d8362fce879c0650908f2f889d9328b2af01a3d46b12915daf0cb85147a1
sha512 cdadf60fb9e62e4230d795e80f7ba7f8c60f58f55e9d664bf856f9c03fa8db02c4eecf24e7f84786641040cbbad90073af1ae0610a53fdf6813a284d7e5da33b
ripemd-160 dc53619b14a80e74ceeb046822d90df6038eec62

21091390 as geometric shapes

Circle

Radius = n
Diameter 42182780
Circumference 132521111.75599
Area 1.3975272256396E+15

Sphere

Radius = n
Volume 3.9301055668778E+22
Surface area 5.5901089025585E+15
Circumference 132521111.75599

Square

Length = n
Perimeter 84365560
Area 444846732132100
Diagonal 29827729.7873

Cube

Length = n
Surface area 2669080392792600
Volume 9.3824359176237E+21
Space diagonal 36531359.08225

Equilateral Triangle

Length = n
Perimeter 63274170
Area 1.9262428540844E+14
Altitude 18265679.541125

Triangular Pyramid

Length = n
Surface area 1.9262428540844E+14
Volume 1.1057306769E+21
Height 9942576.5957668