21000825 (number)

21000825 is an odd 8-digits composite number following 21000824 and preceding 21000826. In scientific notation, it is written as 2.1000825 × 10^7. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 11200320 positive integers (up to 21000825) that are relatively prime to 21000825.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred twenty-five

Notation

Scientific notation 2.1000825 × 10^7
Engineering notation 2.1000825 × 10^6

Prime Factorization of 21000825

Prime Factorization 45 × 5 × 93337

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21000825
Product of the distinct prime numbers

The prime factorization of 21000825 is 45 × 5 × 93337. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 65, 6, 178, 403, 4540, 1281, 18227, 18508, 985475, 320043, 741520, 7475910, 64219618, 60442542, 766347910, 505669151, 5806933405, 3884324153

Basic calculations (n = 21000825)

Multiplication

n×y
n×2 42001650
n×3 63002475
n×4 84003300
n×5 105004125

Division

n÷y
n÷2 10500412.5
n÷3 7000275
n÷3 5250206.25
n÷5 4200165

Exponentiation

ny
n2 441034650680625
n3 9.2620915178799E+21
n4 1.9451156310098E+29
n5 4.0849032971602E+36

Nth Root

y√n
2√n 4582.6657089515
3√n 275.8960304677
4√n 67.695389126229
5√n 29.137163515222

Divisors of 21000825

1, 5, 45, 225, 93337, 466685, 4200165, 21000825

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 -21000824
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 21000825 can be divided by 8 positive divisors. The sum of these divisors (counting 21000825) is 1, the average is 0.125.

Base conversion 21000825

Base System Value
2 Binary 1010000000111001001111001
3 Ternary 1110111221201100
4 Quaternary 1100013021321
5 Quinary 20334011300
6 Senary 2030042013
8 Octal 120071171
10 Decimal 21000825
12 Duodecimal 7049309
16 Hexadecimal 1407279
20 Vigesimal 6b5215
36 Base36 ci4c9

Cryptographic Hash Functions

md5 50b0d52a2205b7aa9a08c909401ae3db
sha1 d35bc246c193ac7ad641b5849e6e32d403d2e988
sha256 80f911b9118a284f803bf319c7c4c02b6e27531b3bb70dc255fe8a4048d40281
sha512 2f07a759c9ab64d1444498142599d48ac55ecbc438e7e510efc51064583a17a7d4549a2a8e018e06e451e07a559b8bd2c8c25471f48230b619edd0a25c8e6157
ripemd-160 916f62e22b4b9a34bb03480aab9805df037a8870

21000825 as geometric shapes

Circle

Radius = n
Diameter 42001650
Circumference 131952075.07865
Area 1.3855512185568E+15

Sphere

Radius = n
Volume 3.8796958225931E+22
Surface area 5.5422048742272E+15
Circumference 131952075.07865

Square

Length = n
Perimeter 84003300
Area 441034650680625
Diagonal 29699651.536024

Cube

Length = n
Surface area 2646207904083750
Volume 9.2620915178799E+21
Space diagonal 36374495.900863

Equilateral Triangle

Length = n
Perimeter 63002475
Area 1.9097360571931E+14
Altitude 18187247.950431

Triangular Pyramid

Length = n
Surface area 1.9097360571931E+14
Volume 1.0915479533772E+21
Height 9899883.8453413