20646 (number)

20646 is an even 5-digits composite number following 20645 and preceding 20647. In scientific notation, it is written as 2.0646 × 10^4. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 6480 positive integers (up to 20646) that are relatively prime to 20646.

Interesting facts

Basic properties

Name

Name twenty thousand six hundred forty-six

Notation

Scientific notation 2.0646 × 10^4
Engineering notation 2.0646 × 10^3

Prime Factorization of 20646

Prime Factorization 2 × 279 × 37

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20646
Product of the distinct prime numbers

The prime factorization of 20646 is 2 × 279 × 37. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 5, 30, 100, 670, 530, 5167, 3610, 85174, 2644, 578518, 812678, 4636672, 3124510, 598563, 22220243, 405360420, 131450279, 255052248, 9965155723

Basic calculations (n = 20646)

Multiplication

n×y
n×2 41292
n×3 61938
n×4 82584
n×5 103230

Division

n÷y
n÷2 10323
n÷3 6882
n÷3 5161.5
n÷5 4129.2

Exponentiation

ny
n2 426257316
n3 8800508546136
n4 181695299443523856
n5 3.751281152311E+21

Nth Root

y√n
2√n 143.68716017794
3√n 27.433337155536
4√n 11.986957920087
5√n 7.2940239434595

Divisors of 20646

1, 2, 37, 74, 279, 558, 10323, 20646

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20645
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20646 can be divided by 8 positive divisors. The sum of these divisors (counting 20646) is 1, the average is 0.125.

Base conversion 20646

Base System Value
2 Binary 101000010100110
3 Ternary 1001022200
4 Quaternary 11002212
5 Quinary 1130041
6 Senary 235330
8 Octal 50246
10 Decimal 20646
12 Duodecimal bb46
16 Hexadecimal 50a6
20 Vigesimal 2bc6
36 Base36 fxi

Cryptographic Hash Functions

md5 37e82b59af48f2014f73b0a869ebac36
sha1 cd89083a3f4a2e3c635143578f6fe9c83cebb81a
sha256 67d4dae87fcb1513abaad05083c817025736c723f429c7b9f382d567d3e890fa
sha512 5f58a7f110fff691233e7c8c00c840824aa2fc4cf4945e7e337d1194d66a88f9a2ae6d1cdd63ff6d1381f9f077818da5f03c1578fa667307c22ebe3044e24f82
ripemd-160 87f6f60efa5c85936a1b31dcc360c52dabd0a823

20646 as geometric shapes

Circle

Radius = n
Diameter 41292
Circumference 129722.64385203
Area 1339126852.4845

Sphere

Radius = n
Volume 36863483995193
Surface area 5356507409.938
Circumference 129722.64385203

Square

Length = n
Perimeter 82584
Area 426257316
Diagonal 29197.853208755

Cube

Length = n
Surface area 2557543896
Volume 8800508546136
Space diagonal 35759.920973067

Equilateral Triangle

Length = n
Perimeter 61938
Area 184574832.10249
Altitude 17879.960486534

Triangular Pyramid

Length = n
Surface area 184574832.10249
Volume 1037149878477.2
Height 9732.6177362516