20642 (number)

20642 is an even 5-digits composite number following 20641 and preceding 20643. In scientific notation, it is written as 2.0642 × 10^4. The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors. There are 10320 positive integers (up to 20642) that are relatively prime to 20642.

Interesting facts

Basic properties

Name

Name twenty thousand six hundred forty-two

Notation

Scientific notation 2.0642 × 10^4
Engineering notation 2.0642 × 10^3

Prime Factorization of 20642

Prime Factorization 2 × 10321

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20642
Product of the distinct prime numbers

The prime factorization of 20642 is 2 × 10321. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 47, 24, 837, 338, 8825, 8627, 78190, 2609, 524884, 186755, 7736126, 8980629, 52903175, 81019620, 861463790, 973196675, 76822928, 1515760776

Basic calculations (n = 20642)

Multiplication

n×y
n×2 41284
n×3 61926
n×4 82568
n×5 103210

Division

n÷y
n÷2 10321
n÷3 6880.6666666667
n÷3 5160.5
n÷5 4128.4

Exponentiation

ny
n2 426092164
n3 8795394449288
n4 181554532222202896
n5 3.7476486541307E+21

Nth Root

y√n
2√n 143.67324037551
3√n 27.431565376724
4√n 11.986377283213
5√n 7.293741289608

Divisors of 20642

1, 2, 10321, 20642

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 -20641
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 20642 can be divided by 4 positive divisors. The sum of these divisors (counting 20642) is 1, the average is 0.25.

Base conversion 20642

Base System Value
2 Binary 101000010100010
3 Ternary 1001022112
4 Quaternary 11002202
5 Quinary 1130032
6 Senary 235322
8 Octal 50242
10 Decimal 20642
12 Duodecimal bb42
16 Hexadecimal 50a2
20 Vigesimal 2bc2
36 Base36 fxe

Cryptographic Hash Functions

md5 3e6e161954c6b908db7770bf73f94be7
sha1 3813c4af091ae500e1116342c796c059f97125e5
sha256 6f4a340010d079dafe63a83561c414eb2f162398802bf859bf746c060b7c8eb9
sha512 16d6c0886845cdd307a809ecd7bfde64f5211036091bfa8d69c0a6a83558df3442279bea557821812178e9a64068c14ef42a677c06c42da2b563efbeaa9ba642
ripemd-160 cd725cb9dbc30de89b434c7368662e42bf4969f2

20642 as geometric shapes

Circle

Radius = n
Diameter 41284
Circumference 129697.5111108
Area 1338608012.1746

Sphere

Radius = n
Volume 36842062116410
Surface area 5354432048.6983
Circumference 129697.5111108

Square

Length = n
Perimeter 82568
Area 426092164
Diagonal 29192.196354505

Cube

Length = n
Surface area 2556552984
Volume 8795394449288
Space diagonal 35752.992769837

Equilateral Triangle

Length = n
Perimeter 61926
Area 184503319.18874
Altitude 17876.496384918

Triangular Pyramid

Length = n
Surface area 184503319.18874
Volume 1036547176383.7
Height 9730.7321181685