20805984 (number)

20805984 is an even 8-digits composite number following 20805983 and preceding 20805985. In scientific notation, it is written as 2.0805984 × 10^7. The sum of its digits is 36. It has a total of 9 prime factors and 72 positive divisors. There are 6614784 positive integers (up to 20805984) that are relatively prime to 20805984.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand nine hundred eighty-four

Notation

Scientific notation 2.0805984 × 10^7
Engineering notation 2.0805984 × 10^6

Prime Factorization of 20805984

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 207 × 3 × 349

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 433458
Product of the distinct prime numbers

The prime factorization of 20805984 is 2 × 2 × 2 × 2 × 2 × 3 × 207 × 3 × 349. Since it has a total of 9 prime factors.

Most popular turbo-numbers

2, 5, 53, 50, 587, 278, 1862, 7714, 12551, 64460, 811742, 584858, 9985523, 4652565, 28714128, 24591183, 572918749, 687784321, 8113764302, 6295744844

Basic calculations (n = 20805984)

Multiplication

n×y
n×2 41611968
n×3 62417952
n×4 83223936
n×5 104029920

Division

n÷y
n÷2 10402992
n÷3 6935328
n÷3 5201496
n÷5 4161196.8

Exponentiation

ny
n2 432888970208256
n3 9.0066809879295E+21
n4 1.8739286052796E+29
n5 3.8988928578591E+36

Nth Root

y√n
2√n 4561.3576926174
3√n 275.04014400183
4√n 67.537824162594
5√n 29.082896118329

Divisors of 20805984

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 207, 288, 349, 414, 621, 698, 828, 1047, 1242, 1396, 1656, 1863, 2094, 2484, 2792, 3141, 3312, 3726, 4188, 4968, 5584, 6282, 6624, 7452, 8376, 9936, 11168, 12564, 14904, 16752, 19872, 25128, 29808, 33504, 50256, 59616, 72243, 100512, 144486, 216729, 288972, 433458, 577944, 650187, 866916, 1155888, 1300374, 1733832, 2311776, 2600748, 3467664, 5201496, 6935328, 10402992, 20805984

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805983
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805984 can be divided by 72 positive divisors. The sum of these divisors (counting 20805984) is 1, the average is 0.013888888888889.

Base conversion 20805984

Base System Value
2 Binary 1001111010111100101100000
3 Ternary 1110011001110000
4 Quaternary 1033113211200
5 Quinary 20311242414
6 Senary 2021540000
8 Octal 117274540
10 Decimal 20805984
12 Duodecimal 6b74600
16 Hexadecimal 13d7960
20 Vigesimal 6a0ej4
36 Base36 cdy00

Cryptographic Hash Functions

md5 50c54dc6c0e89960984c8d7fd1225260
sha1 ea166eed8631ee245cc74b3cc7022cf8ea2f909b
sha256 48638881b6fb23ea397b1ea2805b30cd28804faf4309ef79cea7968424c8c920
sha512 16276512b8d8264abd479caf9d9fbbc568816b40469032865543f75a100d359429fbe229b1c92cc6432e82d05dc4e29cb93886cdd306231d462dc9ac7c75249e
ripemd-160 be1e0373fbe4f789d40bd80cb4ab8d089f2c9430

20805984 as geometric shapes

Circle

Radius = n
Diameter 41611968
Circumference 130727852.97021
Area 1.3599608086263E+15

Sphere

Radius = n
Volume 3.7727097099875E+22
Surface area 5.4398432345052E+15
Circumference 130727852.97021

Square

Length = n
Perimeter 83223936
Area 432888970208256
Diagonal 29424104.751318

Cube

Length = n
Surface area 2597333821249536
Volume 9.0066809879295E+21
Space diagonal 36037021.389465

Equilateral Triangle

Length = n
Perimeter 62417952
Area 1.8744642260922E+14
Altitude 18018510.694733

Triangular Pyramid

Length = n
Surface area 1.8744642260922E+14
Volume 1.0614475337581E+21
Height 9808034.9171059