205506721 (number)

205506721 is an odd 9-digits composite number following 205506720 and preceding 205506722. In scientific notation, it is written as 2.05506721 × 10^8. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 175573008 positive integers (up to 205506721) that are relatively prime to 205506721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.05506721 × 10^8
Engineering notation 2.05506721 × 10^6

Prime Factorization of 205506721

Prime Factorization 7 × 307 × 95629

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 205506721
Product of the distinct prime numbers

The prime factorization of 205506721 is 7 × 307 × 95629. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 8, 67, 68, 908, 116, 3541, 6544, 28795, 62784, 262932, 688555, 4885795, 3585934, 89244255, 33284694, 319409652, 576459369, 5807096377, 8755067877

Basic calculations (n = 205506721)

Multiplication

n×y
n×2 411013442
n×3 616520163
n×4 822026884
n×5 1027533605

Division

n÷y
n÷2 102753360.5
n÷3 68502240.333333
n÷3 51376680.25
n÷5 41101344.2

Exponentiation

ny
n2 42233012376171841
n3 8.6791678913795E+24
n4 1.7836273343659E+33
n5 3.665474049715E+41

Nth Root

y√n
2√n 14335.50560671
3√n 590.12227763425
4√n 119.73097179389
5√n 45.97960181756

Divisors of 205506721

1, 7, 307, 2149, 95629, 669403, 29358103, 205506721

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 -205506720
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 205506721 can be divided by 8 positive divisors. The sum of these divisors (counting 205506721) is 1, the average is 0.125.

Base conversion 205506721

Base System Value
2 Binary 1100001111111100100010100001
3 Ternary 112022200211020001
4 Quaternary 30033330202201
5 Quinary 410102203341
6 Senary 32220420001
8 Octal 1417744241
10 Decimal 205506721
12 Duodecimal 589a7601
16 Hexadecimal c3fc8a1
20 Vigesimal 34486g1
36 Base36 3ecq01

Cryptographic Hash Functions

md5 bb1fb2edb4e84203ec69bf73d814d110
sha1 65d76d843645928c7b19a36f9b169bc6b2a347f5
sha256 6f8bca4bf76fbab15c7fc61fe19c4ac9bcb78b40ef3413de4c2bd3314ef86376
sha512 df5653b91db7d3c807350e97013a24c93f5ae680556b0cfed34d5bd8fbd72749b9260906c004092b6f1d286313e8b87a5d86daadc5b0108114eea9c18b493035
ripemd-160 fd362a7f73df4bc38ac8d85b0b50366bab30f8a1

205506721 as geometric shapes

Circle

Radius = n
Diameter 411013442
Circumference 1291236809.9139
Area 1.3267892141995E+17

Sphere

Radius = n
Volume 3.6355213449107E+25
Surface area 5.3071568567979E+17
Circumference 1291236809.9139

Square

Length = n
Perimeter 822026884
Area 42233012376171841
Diagonal 290630391.99702

Cube

Length = n
Surface area 253398074257031046
Volume 8.6791678913795E+24
Space diagonal 355948082.06888

Equilateral Triangle

Length = n
Perimeter 616520163
Area 1.8287430798054E+16
Altitude 177974041.03444

Triangular Pyramid

Length = n
Surface area 1.8287430798054E+16
Volume 1.0228497451752E+24
Height 96876797.332341