18805 (number)

18805 is an odd 5-digits composite number following 18804 and preceding 18806. In scientific notation, it is written as 1.8805 × 10^4. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 15040 positive integers (up to 18805) that are relatively prime to 18805.

Interesting facts

Basic properties

Name

Name eighteen thousand eight hundred five

Notation

Scientific notation 1.8805 × 10^4
Engineering notation 1.8805 × 10^3

Prime Factorization of 18805

Prime Factorization 5 × 3761

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18805
Product of the distinct prime numbers

The prime factorization of 18805 is 5 × 3761. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 2, 48, 20, 695, 846, 4911, 5583, 69842, 4835, 23970, 372366, 1735691, 9827533, 60560033, 87341893, 393210778, 652424525, 9985669737, 7389329881

Basic calculations (n = 18805)

Multiplication

n×y
n×2 37610
n×3 56415
n×4 75220
n×5 94025

Division

n÷y
n÷2 9402.5
n÷3 6268.3333333333
n÷3 4701.25
n÷5 3761

Exponentiation

ny
n2 353628025
n3 6649975010125
n4 125052780065400625
n5 2.3516175291299E+21

Nth Root

y√n
2√n 137.13132391981
3√n 26.592414970381
4√n 11.710308446826
5√n 7.1590379984036

Divisors of 18805

1, 5, 3761, 18805

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18804
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18805 can be divided by 4 positive divisors. The sum of these divisors (counting 18805) is 1, the average is 0.25.

Base conversion 18805

Base System Value
2 Binary 100100101110101
3 Ternary 221210111
4 Quaternary 10211311
5 Quinary 1100210
6 Senary 223021
8 Octal 44565
10 Decimal 18805
12 Duodecimal aa71
16 Hexadecimal 4975
20 Vigesimal 2705
36 Base36 eid

Cryptographic Hash Functions

md5 54bff62713e574c1097f56646402832a
sha1 170f66dbc93feceb64ec762053b581141d26ff18
sha256 05133844bff497e37fd1339314cfab5db8085849e76d743168884b9de2028a91
sha512 265424498c3ab5b71a855f2251a978c8afd57c886b6c78a080ab99d9e858d8122444d56d25d072b5fb216179b925d2fd1f472d872be46d465e4c8337d87deda8
ripemd-160 8d3a339d3af77068fbb71304987894cbec0546d4

18805 as geometric shapes

Circle

Radius = n
Diameter 37610
Circumference 118155.29970151
Area 1110955205.4435

Sphere

Radius = n
Volume 27855350184486
Surface area 4443820821.7739
Circumference 118155.29970151

Square

Length = n
Perimeter 75220
Area 353628025
Diagonal 26594.286040426

Cube

Length = n
Surface area 2121768150
Volume 6649975010125
Space diagonal 32571.215436333

Equilateral Triangle

Length = n
Perimeter 56415
Area 153125426.57006
Altitude 16285.607718166

Triangular Pyramid

Length = n
Surface area 153125426.57006
Volume 783707070730.08
Height 8864.7620134754