21381838 (number)

21381838 is an even 8-digits composite number following 21381837 and preceding 21381839. In scientific notation, it is written as 2.1381838 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 10666344 positive integers (up to 21381838) that are relatively prime to 21381838.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-one thousand eight hundred thirty-eight

Notation

Scientific notation 2.1381838 × 10^7
Engineering notation 2.1381838 × 10^6

Prime Factorization of 21381838

Prime Factorization 2 × 443 × 24133

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21381838
Product of the distinct prime numbers

The prime factorization of 21381838 is 2 × 443 × 24133. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 4, 71, 20, 214, 512, 7715, 9409, 65395, 99798, 639667, 320262, 8931675, 2782159, 73850726, 24314433, 449549187, 728413947, 9324760495, 5959695829

Basic calculations (n = 21381838)

Multiplication

n×y
n×2 42763676
n×3 64145514
n×4 85527352
n×5 106909190

Division

n÷y
n÷2 10690919
n÷3 7127279.3333333
n÷3 5345459.5
n÷5 4276367.6

Exponentiation

ny
n2 457182996258244
n3 9.7754127623484E+21
n4 2.0901629206767E+29
n5 4.4691524963515E+36

Nth Root

y√n
2√n 4624.0499564775
3√n 277.5545459965
4√n 68.000367326049
5√n 29.242130232955

Divisors of 21381838

1, 2, 443, 886, 24133, 48266, 10690919, 21381838

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 -21381837
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 21381838 can be divided by 8 positive divisors. The sum of these divisors (counting 21381838) is 1, the average is 0.125.

Base conversion 21381838

Base System Value
2 Binary 1010001100100001011001110
3 Ternary 1111020022100221
4 Quaternary 1101210023032
5 Quinary 20433204323
6 Senary 2042141554
8 Octal 121441316
10 Decimal 21381838
12 Duodecimal 71b18ba
16 Hexadecimal 14642ce
20 Vigesimal 6dcebi
36 Base36 cqaby

Cryptographic Hash Functions

md5 8678508ab04e56366906c34aa81e88d8
sha1 befbc10902dfa1d10f909adbaaca094062327f4e
sha256 da2ccafe6ea08bf65d278a7148c81e01917b40c9e3d4aa2695bb0f7a4ae1c626
sha512 114bb74c49faeb3a2f9fd45eeb27a4993f9f334cab2a1d661e5f5b364f8aae3adc034f54846bf3b159ad3da98351bd1443918c2a6388e053fbe5c27c185ee2a5
ripemd-160 1fb8eb1c1cc94bd163b7d16bbfcc34dff6a98078

21381838 as geometric shapes

Circle

Radius = n
Diameter 42763676
Circumference 134346050.36209
Area 1.4362827423911E+15

Sphere

Radius = n
Volume 4.0947153226669E+22
Surface area 5.7451309695643E+15
Circumference 134346050.36209

Square

Length = n
Perimeter 85527352
Area 457182996258244
Diagonal 30238485.288064

Cube

Length = n
Surface area 2743097977549464
Volume 9.7754127623484E+21
Space diagonal 37034429.775207

Equilateral Triangle

Length = n
Perimeter 64145514
Area 1.9796604446896E+14
Altitude 18517214.887603

Triangular Pyramid

Length = n
Surface area 1.9796604446896E+14
Volume 1.1520434421923E+21
Height 10079495.096021