20105 (number)

20105 is an odd 5-digits composite number following 20104 and preceding 20106. In scientific notation, it is written as 2.0105 × 10^4. The sum of its digits is 8. It has a total of 2 prime factors and 4 positive divisors. There are 16080 positive integers (up to 20105) that are relatively prime to 20105.

Interesting facts

Basic properties

Name

Name twenty thousand one hundred five

Notation

Scientific notation 2.0105 × 10^4
Engineering notation 2.0105 × 10^3

Prime Factorization of 20105

Prime Factorization 5 × 4021

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20105
Product of the distinct prime numbers

The prime factorization of 20105 is 5 × 4021. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 22, 96, 258, 449, 1561, 4092, 52063, 74547, 822265, 584570, 9051462, 1885503, 69119003, 40268970, 421981053, 544129691, 1400542004, 4180234169

Basic calculations (n = 20105)

Multiplication

n×y
n×2 40210
n×3 60315
n×4 80420
n×5 100525

Division

n÷y
n÷2 10052.5
n÷3 6701.6666666667
n÷3 5026.25
n÷5 4021

Exponentiation

ny
n2 404211025
n3 8126662657625
n4 163386552731550625
n5 3.2848866426678E+21

Nth Root

y√n
2√n 141.79210133149
3√n 27.191595586814
4√n 11.907648858255
5√n 7.2553908920111

Divisors of 20105

1, 5, 4021, 20105

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 -20104
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 20105 can be divided by 4 positive divisors. The sum of these divisors (counting 20105) is 1, the average is 0.25.

Base conversion 20105

Base System Value
2 Binary 100111010001001
3 Ternary 1000120122
4 Quaternary 10322021
5 Quinary 1120410
6 Senary 233025
8 Octal 47211
10 Decimal 20105
12 Duodecimal b775
16 Hexadecimal 4e89
20 Vigesimal 2a55
36 Base36 fih

Cryptographic Hash Functions

md5 a50a2f182d52fe132a296a3cedc58fd5
sha1 ed64295b980e5af9fdd45c355736d9569494ee77
sha256 1540bc5592f5592dd95113a822faf532d3cd017a8d6d140f3dbba8e84cb6cfad
sha512 7c837e1ce085cd73176ebba12730c607444d20e6bea757ea63c926840a74c7abbc435f38117e22ac2e28c34de4aa41f9f28cb07822773e19e1b3c58024ae9f19
ripemd-160 379c00a9529116f06fafe6ca44fd0dcb2fa6403c

20105 as geometric shapes

Circle

Radius = n
Diameter 40210
Circumference 126323.44060085
Area 1269866386.64

Sphere

Radius = n
Volume 34040884937863
Surface area 5079465546.56
Circumference 126323.44060085

Square

Length = n
Perimeter 80420
Area 404211025
Diagonal 28432.763671511

Cube

Length = n
Surface area 2425266150
Volume 8126662657625
Space diagonal 34822.881486172

Equilateral Triangle

Length = n
Perimeter 60315
Area 175028508.06987
Altitude 17411.440743086

Triangular Pyramid

Length = n
Surface area 175028508.06987
Volume 957736378937.02
Height 9477.5878905037