21802821 (number)

21802821 is an odd 8-digits composite number following 21802820 and preceding 21802822. In scientific notation, it is written as 2.1802821 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 14524272 positive integers (up to 21802821) that are relatively prime to 21802821.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred two thousand eight hundred twenty-one

Notation

Scientific notation 2.1802821 × 10^7
Engineering notation 2.1802821 × 10^6

Prime Factorization of 21802821

Prime Factorization 3 × 2269 × 3203

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21802821
Product of the distinct prime numbers

The prime factorization of 21802821 is 3 × 2269 × 3203. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21802821)

Multiplication

n×y
n×2 43605642
n×3 65408463
n×4 87211284
n×5 109014105

Division

n÷y
n÷2 10901410.5
n÷3 7267607
n÷3 5450705.25
n÷5 4360564.2

Exponentiation

ny
n2 475363003558041
n3 1.0364254476598E+22
n4 2.2596998515172E+29
n5 4.9267831376357E+36

Nth Root

y√n
2√n 4669.3490981078
3√n 279.36429334022
4√n 68.33263567365
5√n 29.356382509076

Divisors of 21802821

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 -21802820
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 21802821 can be divided by 8 positive divisors. The sum of these divisors (counting 21802821) is 1, the average is 0.125.

Base conversion 21802821

Base System Value
2 Binary 1010011001010111101000101
3 Ternary 1112000200211220
4 Quaternary 1103022331011
5 Quinary 21040142241
6 Senary 2055150553
8 Octal 123127505
10 Decimal 21802821
12 Duodecimal 7375459
16 Hexadecimal 14caf45
20 Vigesimal 6g5711
36 Base36 czb5x

Cryptographic Hash Functions

md5 119586f5df23d218be8427b24fd64890
sha1 056a0a8b911f6819d2d2c919997babd85fe57b41
sha256 b5b27bbbc0b5db120f8bf07ce405a070e88cf538a0edafdc8eb91a1ec615fea2
sha512 0aa6b3793aa11ac7c601c1c2e09badb4a313fe46ecf6773ff1425d2c121b054ad5465f7bac5131d16814378c200459c69a8b24621025c76c6c65fe636c63c51c
ripemd-160 08af0dc41dbb7e3f25380f2fe4a714204da4938c

21802821 as geometric shapes

Circle

Radius = n
Diameter 43605642
Circumference 136991164.56227
Area 1.4933969197663E+15

Sphere

Radius = n
Volume 4.3413687631489E+22
Surface area 5.9735876790653E+15
Circumference 136991164.56227

Square

Length = n
Perimeter 87211284
Area 475363003558041
Diagonal 30833845.156193

Cube

Length = n
Surface area 2852178021348246
Volume 1.0364254476598E+22
Space diagonal 37763593.72033

Equilateral Triangle

Length = n
Perimeter 65408463
Area 2.0583821855027E+14
Altitude 18881796.860165

Triangular Pyramid

Length = n
Surface area 2.0583821855027E+14
Volume 1.2214391037243E+21
Height 10277948.385398