20045 (number)

20045 is an odd 5-digits composite number following 20044 and preceding 20046. In scientific notation, it is written as 2.0045 × 10^4. The sum of its digits is 11. It has a total of 2 prime factors and 4 positive divisors. There are 15120 positive integers (up to 20045) that are relatively prime to 20045.

Interesting facts

Basic properties

Name

Name twenty thousand forty-five

Notation

Scientific notation 2.0045 × 10^4
Engineering notation 2.0045 × 10^3

Prime Factorization of 20045

Prime Factorization 95 × 211

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20045
Product of the distinct prime numbers

The prime factorization of 20045 is 95 × 211. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 43, 16, 128, 144, 8662, 8070, 31872, 11204, 560663, 594166, 3838715, 6532347, 53555207, 28815682, 912539164, 311689388, 146635115, 5104191932

Basic calculations (n = 20045)

Multiplication

n×y
n×2 40090
n×3 60135
n×4 80180
n×5 100225

Division

n÷y
n÷2 10022.5
n÷3 6681.6666666667
n÷3 5011.25
n÷5 4009

Exponentiation

ny
n2 401802025
n3 8054121591125
n4 161444867294100625
n5 3.2361623649102E+21

Nth Root

y√n
2√n 141.58036587041
3√n 27.164519048532
4√n 11.898754803357
5√n 7.2510552138624

Divisors of 20045

1, 95, 211, 20045

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 -20044
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 20045 can be divided by 4 positive divisors. The sum of these divisors (counting 20045) is 1, the average is 0.25.

Base conversion 20045

Base System Value
2 Binary 100111001001101
3 Ternary 1000111102
4 Quaternary 10321031
5 Quinary 1120140
6 Senary 232445
8 Octal 47115
10 Decimal 20045
12 Duodecimal b725
16 Hexadecimal 4e4d
20 Vigesimal 2a25
36 Base36 fgt

Cryptographic Hash Functions

md5 745c7d75786602f3105a69845316ff61
sha1 dd606b86ce7d02c769fcd907c29fc914dce4e196
sha256 243fb5fc19e5bf7773973047d4c63443e2a62b6d501bb82a1d843e5ccef8909e
sha512 845b4f44b65b821587443567ec9268a4eef29d304a6e123420aef489687865f048b41a0e672ed230c12abcfffb703c8501e6a2f532966a8dc3943b14b6c3d976
ripemd-160 4d1e7f5b20a000902dc20b77587df9de26613c1a

20045 as geometric shapes

Circle

Radius = n
Diameter 40090
Circumference 125946.44948241
Area 1262298289.9375

Sphere

Radius = n
Volume 33737025629063
Surface area 5049193159.75
Circumference 125946.44948241

Square

Length = n
Perimeter 80180
Area 401802025
Diagonal 28347.910857769

Cube

Length = n
Surface area 2410812150
Volume 8054121591125
Space diagonal 34718.958437718

Equilateral Triangle

Length = n
Perimeter 60135
Area 173985380.47102
Altitude 17359.479218859

Triangular Pyramid

Length = n
Surface area 173985380.47102
Volume 949187332264.25
Height 9449.3036192562