21242705 (number)

21242705 is an odd 8-digits composite number following 21242704 and preceding 21242706. In scientific notation, it is written as 2.1242705 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 15250560 positive integers (up to 21242705) that are relatively prime to 21242705.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-two thousand seven hundred five

Notation

Scientific notation 2.1242705 × 10^7
Engineering notation 2.1242705 × 10^6

Prime Factorization of 21242705

Prime Factorization 5 × 11 × 79 × 4889

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21242705
Product of the distinct prime numbers

The prime factorization of 21242705 is 5 × 11 × 79 × 4889. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 43, 95, 707, 568, 2645, 5613, 84107, 15040, 683731, 51186, 6757441, 5569624, 14892767, 88876424, 746285745, 738029012, 8358530343, 5438896137

Basic calculations (n = 21242705)

Multiplication

n×y
n×2 42485410
n×3 63728115
n×4 84970820
n×5 106213525

Division

n÷y
n÷2 10621352.5
n÷3 7080901.6666667
n÷3 5310676.25
n÷5 4248541

Exponentiation

ny
n2 451252515717025
n3 9.5858240718846E+21
n4 2.0362883294094E+29
n5 4.3256272276588E+36

Nth Root

y√n
2√n 4608.9809068817
3√n 276.95121367518
4√n 67.889475670988
5√n 29.203974705311

Divisors of 21242705

1, 5, 11, 55, 79, 395, 869, 4345, 4889, 24445, 53779, 268895, 386231, 1931155, 4248541, 21242705

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21242704
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21242705 can be divided by 16 positive divisors. The sum of these divisors (counting 21242705) is 1, the average is 0.0625.

Base conversion 21242705

Base System Value
2 Binary 1010001000010001101010001
3 Ternary 1110222020111212
4 Quaternary 1101002031101
5 Quinary 20414231310
6 Senary 2035145505
8 Octal 121021521
10 Decimal 21242705
12 Duodecimal 7145295
16 Hexadecimal 1442351
20 Vigesimal 6cf6f5
36 Base36 cnaz5

Cryptographic Hash Functions

md5 f61d3f7e1fd3d5154c75287d8c7acb26
sha1 2d7d8834286932d06a0cf587e7b1b48c507361b7
sha256 e5feab54dd954b7ad0393787dde66971d5b1fdd0efb9a7c330193f7a857dce17
sha512 347372ab84abf8c2c8b919f952f8d9c56bf4c59362016e1df948e99b9e3717ccec53cad07c2381a4738dd1e9e0b18a7beb40e870aa4724697f13b4d01b321ed9
ripemd-160 ac883a915a3b6342d4ae5c2b59f5ba769b5f2353

21242705 as geometric shapes

Circle

Radius = n
Diameter 42485410
Circumference 133471851.94075
Area 1.4176515882905E+15

Sphere

Radius = n
Volume 4.0153005977116E+22
Surface area 5.6706063531621E+15
Circumference 133471851.94075

Square

Length = n
Perimeter 84970820
Area 451252515717025
Diagonal 30041721.512491

Cube

Length = n
Surface area 2707515094302150
Volume 9.5858240718846E+21
Space diagonal 36793444.350197

Equilateral Triangle

Length = n
Perimeter 63728115
Area 1.9539807106629E+14
Altitude 18396722.175099

Triangular Pyramid

Length = n
Surface area 1.9539807106629E+14
Volume 1.1297002007485E+21
Height 10013907.17083