21768909 (number)

21768909 is an odd 8-digits composite number following 21768908 and preceding 21768910. In scientific notation, it is written as 2.1768909 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 14158560 positive integers (up to 21768909) that are relatively prime to 21768909.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred sixty-eight thousand nine hundred nine

Notation

Scientific notation 2.1768909 × 10^7
Engineering notation 2.1768909 × 10^6

Prime Factorization of 21768909

Prime Factorization 3 × 41 × 176983

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21768909
Product of the distinct prime numbers

The prime factorization of 21768909 is 3 × 41 × 176983. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21768909)

Multiplication

n×y
n×2 43537818
n×3 65306727
n×4 87075636
n×5 108844545

Division

n÷y
n÷2 10884454.5
n÷3 7256303
n÷3 5442227.25
n÷5 4353781.8

Exponentiation

ny
n2 473885399050281
n3 1.0315968128354E+22
n4 2.2456737143304E+29
n5 4.8885866730951E+36

Nth Root

y√n
2√n 4665.716343714
3√n 279.21937756687
4√n 68.306049100457
5√n 29.347244667679

Divisors of 21768909

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 -21768908
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 21768909 can be divided by 8 positive divisors. The sum of these divisors (counting 21768909) is 1, the average is 0.125.

Base conversion 21768909

Base System Value
2 Binary 1010011000010101011001101
3 Ternary 1111221222022220
4 Quaternary 1103002223031
5 Quinary 21033101114
6 Senary 2054325553
8 Octal 123025315
10 Decimal 21768909
12 Duodecimal 73598b9
16 Hexadecimal 14c2acd
20 Vigesimal 6g1259
36 Base36 cykzx

Cryptographic Hash Functions

md5 d122505f91362f57030edb94829932f3
sha1 cf6fa206f7c9a96aeac1d712c66f6c65774d1d43
sha256 5401e3124b03c1a5991f904644d8861e8eadbc808fee353b372a70059d214b4f
sha512 e9cafddcf367b96c32329f23586ce320e6af38b72323dd4943acb1647cd825ae5cfed0cefb8ba41c6f9f5d8c14238d2fbbdf72fb924fea94d8fa5ff431ef1513
ripemd-160 a04f3d19d1d3585c2a539c12e94996e2ed674385

21768909 as geometric shapes

Circle

Radius = n
Diameter 43537818
Circumference 136778089.18213
Area 1.4887548882998E+15

Sphere

Radius = n
Volume 4.3211426248939E+22
Surface area 5.9550195531993E+15
Circumference 136778089.18213

Square

Length = n
Perimeter 87075636
Area 473885399050281
Diagonal 30785886.345866

Cube

Length = n
Surface area 2843312394301686
Volume 1.0315968128354E+22
Space diagonal 37704856.413343

Equilateral Triangle

Length = n
Perimeter 65306727
Area 2.0519839703003E+14
Altitude 18852428.206672

Triangular Pyramid

Length = n
Surface area 2.0519839703003E+14
Volume 1.2157485030106E+21
Height 10261962.115289