20688 (number)

20688 is an even 5-digits composite number following 20687 and preceding 20689. In scientific notation, it is written as 2.0688 × 10^4. The sum of its digits is 24. It has a total of 6 prime factors and 20 positive divisors. There are 6880 positive integers (up to 20688) that are relatively prime to 20688.

Interesting facts

Basic properties

Name

Name twenty thousand six hundred eighty-eight

Notation

Scientific notation 2.0688 × 10^4
Engineering notation 2.0688 × 10^3

Prime Factorization of 20688

Prime Factorization 2 × 2 × 2 × 2 × 3 × 431

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2586
Product of the distinct prime numbers

The prime factorization of 20688 is 2 × 2 × 2 × 2 × 3 × 431. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 6, 76, 22, 787, 144, 7710, 6910, 94437, 78309, 532506, 686754, 5706413, 3469834, 30320483, 59603351, 681751598, 331372983, 5269636044, 2460258734

Basic calculations (n = 20688)

Multiplication

n×y
n×2 41376
n×3 62064
n×4 82752
n×5 103440

Division

n÷y
n÷2 10344
n÷3 6896
n÷3 5172
n÷5 4137.6

Exponentiation

ny
n2 427993344
n3 8854326300672
n4 183178302508302336
n5 3.7895927222918E+21

Nth Root

y√n
2√n 143.83323677092
3√n 27.451927031514
4√n 11.993049519239
5√n 7.2969891670194

Divisors of 20688

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 431, 862, 1293, 1724, 2586, 3448, 5172, 6896, 10344, 20688

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20688 can be divided by 20 positive divisors. The sum of these divisors (counting 20688) is 1, the average is 0.05.

Base conversion 20688

Base System Value
2 Binary 101000011010000
3 Ternary 1001101020
4 Quaternary 11003100
5 Quinary 1130223
6 Senary 235440
8 Octal 50320
10 Decimal 20688
12 Duodecimal bb80
16 Hexadecimal 50d0
20 Vigesimal 2be8
36 Base36 fyo

Cryptographic Hash Functions

md5 6d9d8262844bea015e2303ae58d829bf
sha1 e913d467395162bb008c21f9b4e4385cdf1466d3
sha256 042769a2c5abe3798972cb09308dfa7f0e953c779740df6bd6821c67e0bc9c31
sha512 15b35a42c349437bbccf49cd5891e77acb1eadfbd7b3709dadd0382676580a501deb1ea97a4643ca230e6cc603fcb64ad83ed8a03182aa9ff094e8c64bc12d2b
ripemd-160 9050b23b7a97ceb0b1a2fb319a76ae4bb5f092e4

20688 as geometric shapes

Circle

Radius = n
Diameter 41376
Circumference 129986.53763493
Area 1344580745.2957

Sphere

Radius = n
Volume 37088915278237
Surface area 5378322981.1829
Circumference 129986.53763493

Square

Length = n
Perimeter 82752
Area 427993344
Diagonal 29257.250178375

Cube

Length = n
Surface area 2567960064
Volume 8854326300672
Space diagonal 35832.667106985

Equilateral Triangle

Length = n
Perimeter 62064
Area 185326554.27733
Altitude 17916.333553492

Triangular Pyramid

Length = n
Surface area 185326554.27733
Volume 1043492361673.9
Height 9752.4167261249