21000390 (number)

21000390 is an even 8-digits composite number following 21000389 and preceding 21000391. In scientific notation, it is written as 2.1000390 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 5582304 positive integers (up to 21000390) that are relatively prime to 21000390.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred ninety

Notation

Scientific notation 2.1000390 × 10^7
Engineering notation 2.1000390 × 10^6

Prime Factorization of 21000390

Prime Factorization 2 × 15 × 379 × 1847

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21000390
Product of the distinct prime numbers

The prime factorization of 21000390 is 2 × 15 × 379 × 1847. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 71, 95, 297, 17, 6224, 8258, 34569, 24451, 492100, 498132, 5618505, 2906222, 26870808, 51256983, 778963529, 727724447, 887177062, 7684527315

Basic calculations (n = 21000390)

Multiplication

n×y
n×2 42000780
n×3 63001170
n×4 84001560
n×5 105001950

Division

n÷y
n÷2 10500195
n÷3 7000130
n÷3 5250097.5
n÷5 4200078

Exponentiation

ny
n2 441016380152100
n3 9.2615159795824E+21
n4 1.9449544756246E+29
n5 4.0844802520362E+36

Nth Root

y√n
2√n 4582.6182472469
3√n 275.89412553298
4√n 67.695038571869
5√n 29.137042807858

Divisors of 21000390

1, 2, 15, 30, 379, 758, 1847, 3694, 5685, 11370, 27705, 55410, 700013, 1400026, 10500195, 21000390

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 -21000389
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 21000390 can be divided by 16 positive divisors. The sum of these divisors (counting 21000390) is 1, the average is 0.0625.

Base conversion 21000390

Base System Value
2 Binary 1010000000111000011000110
3 Ternary 1110111221010020
4 Quaternary 1100013003012
5 Quinary 20334003030
6 Senary 2030040010
8 Octal 120070306
10 Decimal 21000390
12 Duodecimal 7049006
16 Hexadecimal 14070c6
20 Vigesimal 6b50ja
36 Base36 ci406

Cryptographic Hash Functions

md5 2fb149d629fbcf45b324dafbb19fc952
sha1 797a19f416f14db4d7a2600b6fa9635c14f1c614
sha256 d02fc39d81c3f04f07b464a612d9a5f4bdf58d94363945799bd92e4503691cf1
sha512 d9c28120a7037bdf8da0acbeeac15de0655c3d75d23ff95bab0a737635f65703b97a0c3b9306b43c79c15f3e76eea097e22584dd7316f59ff3a49ac5588bf8c7
ripemd-160 2b8538b23318f09e30f4fdfc5ceee4733bd5e353

21000390 as geometric shapes

Circle

Radius = n
Diameter 42000780
Circumference 131949341.89304
Area 1.3854938199986E+15

Sphere

Radius = n
Volume 3.8794547416747E+22
Surface area 5.5419752799944E+15
Circumference 131949341.89304

Square

Length = n
Perimeter 84001560
Area 441016380152100
Diagonal 29699036.353124

Cube

Length = n
Surface area 2646098280912600
Volume 9.2615159795824E+21
Space diagonal 36373742.458761

Equilateral Triangle

Length = n
Perimeter 63001170
Area 1.9096569434839E+14
Altitude 18186871.229381

Triangular Pyramid

Length = n
Surface area 1.9096569434839E+14
Volume 1.0914801255384E+21
Height 9899678.7843748