21006925 (number)

21006925 is an odd 8-digits composite number following 21006924 and preceding 21006926. In scientific notation, it is written as 2.1006925 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors. There are 16805520 positive integers (up to 21006925) that are relatively prime to 21006925.

Interesting facts

Basic properties

Name

Name twenty-one million six thousand nine hundred twenty-five

Notation

Scientific notation 2.1006925 × 10^7
Engineering notation 2.1006925 × 10^6

Prime Factorization of 21006925

Prime Factorization 5 × 5 × 840277

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 4201385
Product of the distinct prime numbers

The prime factorization of 21006925 is 5 × 5 × 840277. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21006925)

Multiplication

n×y
n×2 42013850
n×3 63020775
n×4 84027700
n×5 105034625

Division

n÷y
n÷2 10503462.5
n÷3 7002308.3333333
n÷3 5251731.25
n÷5 4201385

Exponentiation

ny
n2 441290897955625
n3 9.2701647965365E+21
n4 1.9473765661848E+29
n5 4.0908393472602E+36

Nth Root

y√n
2√n 4583.3312121207
3√n 275.92274057496
4√n 67.700304372438
5√n 29.138855982547

Divisors of 21006925

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21006924
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21006925 can be divided by 6 positive divisors. The sum of these divisors (counting 21006925) is 1, the average is 0.16666666666667.

Base conversion 21006925

Base System Value
2 Binary 1010000001000101001001101
3 Ternary 1110112021002021
4 Quaternary 1100020221031
5 Quinary 20334210200
6 Senary 2030130141
8 Octal 120105115
10 Decimal 21006925
12 Duodecimal 7050951
16 Hexadecimal 1408a4d
20 Vigesimal 6b5h65
36 Base36 ci91p

Cryptographic Hash Functions

md5 046d01f700253bc6d8fffd80950b287d
sha1 6161ab61a0430a4edd128de9dcbda816ca08fe26
sha256 fe2c28fe9dd3ce66e44f75edfed3f90f6aed3132da23de4cbf382b7e90802600
sha512 4e139c6474aaa6b77ea8f0aafa6136172717e555aef49902532c7ebef86976f139d7d9195dd57529f6286d9984e62360f1e5dfdab76861d0071fb1159b45a272
ripemd-160 f7e119e1e610fca80eea66eae1aa8c8c5611e768

21006925 as geometric shapes

Circle

Radius = n
Diameter 42013850
Circumference 131990402.50902
Area 1.3863562431134E+15

Sphere

Radius = n
Volume 3.8830775496488E+22
Surface area 5.5454249724537E+15
Circumference 131990402.50902

Square

Length = n
Perimeter 84027700
Area 441290897955625
Diagonal 29708278.238754

Cube

Length = n
Surface area 2647745387733750
Volume 9.2701647965365E+21
Space diagonal 36385061.410789

Equilateral Triangle

Length = n
Perimeter 63020775
Area 1.9108456404421E+14
Altitude 18192530.705394

Triangular Pyramid

Length = n
Surface area 1.9108456404421E+14
Volume 1.0924993983913E+21
Height 9902759.4129181