21000438 (number)

21000438 is an even 8-digits composite number following 21000437 and preceding 21000439. In scientific notation, it is written as 2.1000438 × 10^7. The sum of its digits is 18. It has a total of 5 prime factors and 16 positive divisors. There are 7000128 positive integers (up to 21000438) that are relatively prime to 21000438.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred thirty-eight

Notation

Scientific notation 2.1000438 × 10^7
Engineering notation 2.1000438 × 10^6

Prime Factorization of 21000438

Prime Factorization 2 × 3 × 3 × 3 × 388897

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2333382
Product of the distinct prime numbers

The prime factorization of 21000438 is 2 × 3 × 3 × 3 × 388897. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 10, 24, 47, 479, 532, 9787, 8218, 48025, 72327, 812837, 539039, 8877464, 3305611, 16783238, 21108691, 170926100, 490160207, 1396223535, 7973487765

Basic calculations (n = 21000438)

Multiplication

n×y
n×2 42000876
n×3 63001314
n×4 84001752
n×5 105002190

Division

n÷y
n÷2 10500219
n÷3 7000146
n÷3 5250109.5
n÷5 4200087.6

Exponentiation

ny
n2 441018396191844
n3 9.2615794860863E+21
n4 1.9449722577963E+29
n5 4.084526931157E+36

Nth Root

y√n
2√n 4582.6234844246
3√n 275.89433573397
4√n 67.695077253997
5√n 29.137056127389

Divisors of 21000438

1, 2, 3, 6, 9, 18, 27, 54, 388897, 777794, 1166691, 2333382, 3500073, 7000146, 10500219, 21000438

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 -21000437
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 21000438 can be divided by 16 positive divisors. The sum of these divisors (counting 21000438) is 1, the average is 0.0625.

Base conversion 21000438

Base System Value
2 Binary 1010000000111000011110110
3 Ternary 1110111221012000
4 Quaternary 1100013003312
5 Quinary 20334003223
6 Senary 2030040130
8 Octal 120070366
10 Decimal 21000438
12 Duodecimal 7049046
16 Hexadecimal 14070f6
20 Vigesimal 6b511i
36 Base36 ci41i

Cryptographic Hash Functions

md5 80ef69784be50b8a3d2529f2823b2648
sha1 289ab6cbb5a2bad6b29b2543be32786bf94978c4
sha256 c544296da5eeb2791a62c84ef14fac2ceef7f07fc3d2cd4186f087f98c9a3449
sha512 883acd5d12ddde9ea05afba6117f1fa9821cf4e301e556b5450c49eb7025e0355e4cfa86be20e132ad2b05602d161dc377820838362b95ed1c21b57226e66e86
ripemd-160 161649d9b7d173d09427c84e80a45d99534d98cd

21000438 as geometric shapes

Circle

Radius = n
Diameter 42000876
Circumference 131949643.48594
Area 1.3855001535742E+15

Sphere

Radius = n
Volume 3.8794813432169E+22
Surface area 5.542000614297E+15
Circumference 131949643.48594

Square

Length = n
Perimeter 84001752
Area 441018396191844
Diagonal 29699104.235375

Cube

Length = n
Surface area 2646110377151064
Volume 9.2615794860863E+21
Space diagonal 36373825.5972

Equilateral Triangle

Length = n
Perimeter 63001314
Area 1.909665673192E+14
Altitude 18186912.7986

Triangular Pyramid

Length = n
Surface area 1.909665673192E+14
Volume 1.0914876098516E+21
Height 9899701.4117918