21505712 (number)

21505712 is an even 8-digits composite number following 21505711 and preceding 21505713. In scientific notation, it is written as 2.1505712 × 10^7. The sum of its digits is 23. It has a total of 6 prime factors and 20 positive divisors. There are 10673280 positive integers (up to 21505712) that are relatively prime to 21505712.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred five thousand seven hundred twelve

Notation

Scientific notation 2.1505712 × 10^7
Engineering notation 2.1505712 × 10^6

Prime Factorization of 21505712

Prime Factorization 2 × 2 × 2 × 2 × 137 × 9811

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2688214
Product of the distinct prime numbers

The prime factorization of 21505712 is 2 × 2 × 2 × 2 × 137 × 9811. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 8, 34, 8, 26, 474, 5743, 5212, 61490, 403, 168214, 629513, 8904304, 1719079, 71733356, 19002528, 389870392, 616099946, 6093857947, 5994392657

Basic calculations (n = 21505712)

Multiplication

n×y
n×2 43011424
n×3 64517136
n×4 86022848
n×5 107528560

Division

n÷y
n÷2 10752856
n÷3 7168570.6666667
n÷3 5376428
n÷5 4301142.4

Exponentiation

ny
n2 462495648626944
n3 9.9462982206243E+21
n4 2.1390222499886E+29
n5 4.6001196469846E+36

Nth Root

y√n
2√n 4637.4251476439
3√n 278.08951105483
4√n 68.098642773875
5√n 29.275934383988

Divisors of 21505712

1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9811, 19622, 39244, 78488, 156976, 1344107, 2688214, 5376428, 10752856, 21505712

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21505711
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21505712 can be divided by 20 positive divisors. The sum of these divisors (counting 21505712) is 1, the average is 0.05.

Base conversion 21505712

Base System Value
2 Binary 1010010000010011010110000
3 Ternary 1111110121021212
4 Quaternary 1102002122300
5 Quinary 21001140322
6 Senary 2044535252
8 Octal 122023260
10 Decimal 21505712
12 Duodecimal 7251528
16 Hexadecimal 14826b0
20 Vigesimal 6e845c
36 Base36 csxww

Cryptographic Hash Functions

md5 066a15708a6ac60839e8c37ade4cc8db
sha1 0c6dca20463eaf900ef211ad9da131f6c85410ae
sha256 4ad699b62770e24c1fb8ee986651f3fbb7a9e634c588786c5fd3e468a9bf097b
sha512 a4f135f0e49484276932f6997a3ddb85a40910101a60309f528fa76035099cdb4e7dd825d9f2e05bafedcf87a7a9b8290685b7a3a097bf37b5a0f74d3d23d781
ripemd-160 e6c08e3f64d983f00f27bdd3e433759e512a8619

21505712 as geometric shapes

Circle

Radius = n
Diameter 43011424
Circumference 135124373.65884
Area 1.4529729320437E+15

Sphere

Radius = n
Volume 4.1662956560435E+22
Surface area 5.8118917281746E+15
Circumference 135124373.65884

Square

Length = n
Perimeter 86022848
Area 462495648626944
Diagonal 30413669.57889

Cube

Length = n
Surface area 2774973891761664
Volume 9.9462982206243E+21
Space diagonal 37248985.836944

Equilateral Triangle

Length = n
Perimeter 64517136
Area 2.0026649042535E+14
Altitude 18624492.918472

Triangular Pyramid

Length = n
Surface area 2.0026649042535E+14
Volume 1.1721824865845E+21
Height 10137889.85963