21789 (number)

21789 is an odd 5-digits composite number following 21788 and preceding 21790. In scientific notation, it is written as 2.1789 × 10^4. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 14472 positive integers (up to 21789) that are relatively prime to 21789.

Interesting facts

Basic properties

Name

Name twenty-one thousand seven hundred eighty-nine

Notation

Scientific notation 2.1789 × 10^4
Engineering notation 2.1789 × 10^3

Prime Factorization of 21789

Prime Factorization 27 × 3 × 269

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21789
Product of the distinct prime numbers

The prime factorization of 21789 is 27 × 3 × 269. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 45, 40, 866, 985, 9333, 3438, 55013, 19082, 246112, 708611, 9967118, 3605786, 84890605, 98086508, 86226645, 974389968, 3358727176, 6668044152

Basic calculations (n = 21789)

Multiplication

n×y
n×2 43578
n×3 65367
n×4 87156
n×5 108945

Division

n÷y
n÷2 10894.5
n÷3 7263
n÷3 5447.25
n÷5 4357.8

Exponentiation

ny
n2 474760521
n3 10344556992069
n4 225397552300191441
n5 4.9111872670689E+21

Nth Root

y√n
2√n 147.61097520171
3√n 27.930525036827
4√n 12.149525719209
5√n 7.3730547657218

Divisors of 21789

1, 3, 27, 81, 269, 807, 7263, 21789

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 -21788
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 21789 can be divided by 8 positive divisors. The sum of these divisors (counting 21789) is 1, the average is 0.125.

Base conversion 21789

Base System Value
2 Binary 101010100011101
3 Ternary 1002220000
4 Quaternary 11110131
5 Quinary 1144124
6 Senary 244513
8 Octal 52435
10 Decimal 21789
12 Duodecimal 10739
16 Hexadecimal 551d
20 Vigesimal 2e99
36 Base36 gt9

Cryptographic Hash Functions

md5 9863c2d1f9c2fd8e0e10ba7838592b73
sha1 3c450036f859d080730f60ca15f9cedf702e7537
sha256 c9cb30141f413a91a419bd2f82f20cceff7b0e08294987b716d3657032ee9045
sha512 844bdc454d489aec19ebafa657fee7f47837444fc7461ccc6eea86dfeeea1605aa88d4fbba20836ddc521652bc2589a1987a4b5449f879defc7de89391040d58
ripemd-160 5c5e4f2085224e8a4941cdd2c0a10d6e5fc58593

21789 as geometric shapes

Circle

Radius = n
Diameter 43578
Circumference 136904.32465814
Area 1491504164.9881

Sphere

Radius = n
Volume 43331179001233
Surface area 5966016659.9523
Circumference 136904.32465814

Square

Length = n
Perimeter 87156
Area 474760521
Diagonal 30814.299310547

Cube

Length = n
Surface area 2848563126
Volume 10344556992069
Space diagonal 37739.655046118

Equilateral Triangle

Length = n
Perimeter 65367
Area 205577335.94997
Altitude 18869.827523059

Triangular Pyramid

Length = n
Surface area 205577335.94997
Volume 1219117732910.5
Height 10271.433103516