21081709 (number)

21081709 is an odd 8-digits composite number following 21081708 and preceding 21081710. In scientific notation, it is written as 2.1081709 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 18701760 positive integers (up to 21081709) that are relatively prime to 21081709.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand seven hundred nine

Notation

Scientific notation 2.1081709 × 10^7
Engineering notation 2.1081709 × 10^6

Prime Factorization of 21081709

Prime Factorization 5687 × 11 × 337

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21081709
Product of the distinct prime numbers

The prime factorization of 21081709 is 5687 × 11 × 337. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21081709)

Multiplication

n×y
n×2 42163418
n×3 63245127
n×4 84326836
n×5 105408545

Division

n÷y
n÷2 10540854.5
n÷3 7027236.3333333
n÷3 5270427.25
n÷5 4216341.8

Exponentiation

ny
n2 444438454360681
n3 9.3695221632417E+21
n4 1.9752553971451E+29
n5 4.1641759483293E+36

Nth Root

y√n
2√n 4591.4822225508
3√n 276.24977825989
4√n 67.760476847133
5√n 29.159573186776

Divisors of 21081709

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 -21081708
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 21081709 can be divided by 8 positive divisors. The sum of these divisors (counting 21081709) is 1, the average is 0.125.

Base conversion 21081709

Base System Value
2 Binary 1010000011010111001101101
3 Ternary 1110200001200001
4 Quaternary 1100122321231
5 Quinary 20344103314
6 Senary 2031504301
8 Octal 120327155
10 Decimal 21081709
12 Duodecimal 7088091
16 Hexadecimal 141ae6d
20 Vigesimal 6bf459
36 Base36 cjur1

Cryptographic Hash Functions

md5 a89a720639794f1386e3c59cf63737b7
sha1 c733593fd46feed97c88d11c57bcd27dd165d1c9
sha256 8d7d90af5df9c733b2a7a358d2476feca5db253f90cb03e867c2c09b93493e95
sha512 09ae59f76c4e076158c50e40cd2ddf784d86bd4c7dc8b91c4f77a8aef3cf2031a56725f088bfa1ae60da0f2e92e0a03e2be1e134d576cdff777da384f2357656
ripemd-160 0a0b3530c0739a175a0c15508de13a04c35fa380

21081709 as geometric shapes

Circle

Radius = n
Diameter 42163418
Circumference 132460284.23904
Area 1.3962445831923E+15

Sphere

Radius = n
Volume 3.9246962660916E+22
Surface area 5.5849783327693E+15
Circumference 132460284.23904

Square

Length = n
Perimeter 84326836
Area 444438454360681
Diagonal 29814038.785803

Cube

Length = n
Surface area 2666630726164086
Volume 9.3695221632417E+21
Space diagonal 36514591.098382

Equilateral Triangle

Length = n
Perimeter 63245127
Area 1.9244749594752E+14
Altitude 18257295.549191

Triangular Pyramid

Length = n
Surface area 1.9244749594752E+14
Volume 1.104208776351E+21
Height 9938012.928601