21000812 (number)

21000812 is an even 8-digits composite number following 21000811 and preceding 21000813. In scientific notation, it is written as 2.1000812 × 10^7. The sum of its digits is 14. It has a total of 5 prime factors and 24 positive divisors. There are 8908704 positive integers (up to 21000812) that are relatively prime to 21000812.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred twelve

Notation

Scientific notation 2.1000812 × 10^7
Engineering notation 2.1000812 × 10^6

Prime Factorization of 21000812

Prime Factorization 2 × 2 × 49 × 109 × 983

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10500406
Product of the distinct prime numbers

The prime factorization of 21000812 is 2 × 2 × 49 × 109 × 983. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 4, 97, 38, 636, 224, 409, 9932, 4916, 65630, 8764, 638534, 4536941, 4955887, 65113210, 21647570, 299030856, 498474614, 9791674860, 3251782760

Basic calculations (n = 21000812)

Multiplication

n×y
n×2 42001624
n×3 63002436
n×4 84003248
n×5 105004060

Division

n÷y
n÷2 10500406
n÷3 7000270.6666667
n÷3 5250203
n÷5 4200162.4

Exponentiation

ny
n2 441034104659344
n3 9.2620743175392E+21
n4 1.9451108147267E+29
n5 4.0848906539242E+36

Nth Root

y√n
2√n 4582.6642905629
3√n 275.895973539
4√n 67.69537864997
5√n 29.137159907904

Divisors of 21000812

1, 2, 4, 49, 98, 109, 196, 218, 436, 983, 1966, 3932, 5341, 10682, 21364, 48167, 96334, 107147, 192668, 214294, 428588, 5250203, 10500406, 21000812

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000812 can be divided by 24 positive divisors. The sum of these divisors (counting 21000812) is 1, the average is 0.041666666666667.

Base conversion 21000812

Base System Value
2 Binary 1010000000111001001101100
3 Ternary 1110111221200212
4 Quaternary 1100013021230
5 Quinary 20334011222
6 Senary 2030041552
8 Octal 120071154
10 Decimal 21000812
12 Duodecimal 70492b8
16 Hexadecimal 140726c
20 Vigesimal 6b520c
36 Base36 ci4bw

Cryptographic Hash Functions

md5 892ac7ed407c3109a23daac47491b3d0
sha1 473355bc8aa6c87e7dd48c56073b8a4aafc9ff06
sha256 b51d60279da4942ac93990256d260c72d82f18847f2785cbf0c18b434c76eb28
sha512 1938e7a9cc747de28e321fe26e596f7a8cb0fd8ac23675d2ae7e505536affa47a9613da16955d4a293741fdff67b756e003aa3282083e2eae20db6737266e3fc
ripemd-160 ca8d1d02de980c34a16d193afd78656321854dae

21000812 as geometric shapes

Circle

Radius = n
Diameter 42001624
Circumference 131951993.39724
Area 1.3855495031803E+15

Sphere

Radius = n
Volume 3.8796886177312E+22
Surface area 5.5421980127214E+15
Circumference 131951993.39724

Square

Length = n
Perimeter 84003248
Area 441034104659344
Diagonal 29699633.151248

Cube

Length = n
Surface area 2646204627956064
Volume 9.2620743175392E+21
Space diagonal 36374473.384202

Equilateral Triangle

Length = n
Perimeter 63002436
Area 1.9097336928516E+14
Altitude 18187236.692101

Triangular Pyramid

Length = n
Surface area 1.9097336928516E+14
Volume 1.0915459262976E+21
Height 9899877.7170825