208640809 (number)

208640809 is an odd 9-digits composite number following 208640808 and preceding 208640810. In scientific notation, it is written as 2.08640809 × 10^8. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 191646000 positive integers (up to 208640809) that are relatively prime to 208640809.

Interesting facts

Basic properties

Name

Name two hundred eight million six hundred forty thousand eight hundred nine

Notation

Scientific notation 2.08640809 × 10^8
Engineering notation 2.08640809 × 10^6

Prime Factorization of 208640809

Prime Factorization 169 × 211 × 5851

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 208640809
Product of the distinct prime numbers

The prime factorization of 208640809 is 169 × 211 × 5851. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 39, 27, 268, 447, 5239, 8309, 29712, 68625, 805368, 949281, 9366136, 4249710, 22759452, 77725878, 252236357, 821889191, 5024017042, 8268562700

Basic calculations (n = 208640809)

Multiplication

n×y
n×2 417281618
n×3 625922427
n×4 834563236
n×5 1043204045

Division

n÷y
n÷2 104320404.5
n÷3 69546936.333333
n÷3 52160202.25
n÷5 41728161.8

Exponentiation

ny
n2 43530987180174481
n3 9.0823403818402E+24
n4 1.8949468448805E+33
n5 3.9536324272787E+41

Nth Root

y√n
2√n 14444.404072166
3√n 593.10704955996
4√n 120.18487455652
5√n 46.118996782688

Divisors of 208640809

1, 169, 211, 5851, 35659, 988819, 1234561, 208640809

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 -208640808
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 208640809 can be divided by 8 positive divisors. The sum of these divisors (counting 208640809) is 1, the average is 0.125.

Base conversion 208640809

Base System Value
2 Binary 1100011011111001101100101001
3 Ternary 112112121001101101
4 Quaternary 30123321230221
5 Quinary 411403001214
6 Senary 32411521401
8 Octal 1433715451
10 Decimal 208640809
12 Duodecimal 59a59261
16 Hexadecimal c6f9b29
20 Vigesimal 3540209
36 Base36 3g7wa1

Cryptographic Hash Functions

md5 58c5f67b09d2b5837145e58f53d78bc2
sha1 36c45ef96396e337be202ed168b039ba324e6140
sha256 5ff76c9f6f896c1b185bfe9f760d13a9690c494037f0a241191111142b228294
sha512 b8f1ac46439ff4aca7b656ba131b8d4a441d86f5fa9a936025072314868cc6c059fe3fc89fdfa63ae3d08f1204ac87a9d474727df96548a2bae541c61aecdd06
ripemd-160 eaff2d3bac5d077b0364a98d711c4d2d64b5fac3

208640809 as geometric shapes

Circle

Radius = n
Diameter 417281618
Circumference 1310928865.5869
Area 1.3675662952875E+17

Sphere

Radius = n
Volume 3.8044018427988E+25
Surface area 5.4702651811499E+17
Circumference 1310928865.5869

Square

Length = n
Perimeter 834563236
Area 43530987180174481
Diagonal 295062661.75229

Cube

Length = n
Surface area 261185923081046886
Volume 9.0823403818402E+24
Space diagonal 361376481.72027

Equilateral Triangle

Length = n
Perimeter 625922427
Area 1.8849470374923E+16
Altitude 180688240.86014

Triangular Pyramid

Length = n
Surface area 1.8849470374923E+16
Volume 1.0703640788406E+24
Height 98354220.584098