21493820 (number)

21493820 is an even 8-digits composite number following 21493819 and preceding 21493821. In scientific notation, it is written as 2.1493820 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 8597520 positive integers (up to 21493820) that are relatively prime to 21493820.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1493820 × 10^7
Engineering notation 2.1493820 × 10^6

Prime Factorization of 21493820

Prime Factorization 2 × 2 × 5 × 1074691

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10746910
Product of the distinct prime numbers

The prime factorization of 21493820 is 2 × 2 × 5 × 1074691. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 73, 27, 694, 739, 6676, 5886, 74853, 43726, 982762, 901489, 8778177, 4823664, 85442012, 1280613, 769298645, 488910460, 9187946432, 5617306696

Basic calculations (n = 21493820)

Multiplication

n×y
n×2 42987640
n×3 64481460
n×4 85975280
n×5 107469100

Division

n÷y
n÷2 10746910
n÷3 7164606.6666667
n÷3 5373455
n÷5 4298764

Exponentiation

ny
n2 461984298192400
n3 9.9298073481738E+21
n4 2.1342949177632E+29
n5 4.5874150789318E+36

Nth Root

y√n
2√n 4636.1427933143
3√n 278.03824327665
4√n 68.089226705216
5√n 29.272695928608

Divisors of 21493820

1, 2, 4, 5, 10, 20, 1074691, 2149382, 4298764, 5373455, 10746910, 21493820

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 -21493819
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 21493820 can be divided by 12 positive divisors. The sum of these divisors (counting 21493820) is 1, the average is 0.083333333333333.

Base conversion 21493820

Base System Value
2 Binary 1010001111111100000111100
3 Ternary 1111102222222102
4 Quaternary 1101333200330
5 Quinary 21000300240
6 Senary 2044404232
8 Octal 121774074
10 Decimal 21493820
12 Duodecimal 7246678
16 Hexadecimal 147f83c
20 Vigesimal 6e6eb0
36 Base36 csoqk

Cryptographic Hash Functions

md5 a5dcae7d0d6856d502cef20d099c6686
sha1 2c23a34f6714e520300a2ed6292913a4bdee9d89
sha256 2eb1f2200aa05dd7a59e02cff1d3ac87ac70b13ed35b9ad91d7a8afaca546211
sha512 5690ef1c43c2f354642ef15242e90180db87a813e7acd77419ba25c7dc9e3b6bcf9cc7cc95e723496d60b685444c7947ec4fab34c8fcc9858d0d290e0571555e
ripemd-160 5272e2ff6084b3f1bdaf665f64fc7e0afb315207

21493820 as geometric shapes

Circle

Radius = n
Diameter 42987640
Circumference 135049654.01916
Area 1.4513664772751E+15

Sphere

Radius = n
Volume 4.1593879755446E+22
Surface area 5.8054659091003E+15
Circumference 135049654.01916

Square

Length = n
Perimeter 85975280
Area 461984298192400
Diagonal 30396851.751206

Cube

Length = n
Surface area 2771905789154400
Volume 9.9298073481738E+21
Space diagonal 37228388.28874

Equilateral Triangle

Length = n
Perimeter 64481460
Area 2.0004506919207E+14
Altitude 18614194.14437

Triangular Pyramid

Length = n
Surface area 2.0004506919207E+14
Volume 1.1702390186283E+21
Height 10132283.917069