21123 (number)

21123 is an odd 5-digits composite number following 21122 and preceding 21124. In scientific notation, it is written as 2.1123 × 10^4. The sum of its digits is 9. It has a total of 3 prime factors and 6 positive divisors. There are 14076 positive integers (up to 21123) that are relatively prime to 21123.

Interesting facts

Basic properties

Name

Name twenty-one thousand one hundred twenty-three

Notation

Scientific notation 2.1123 × 10^4
Engineering notation 2.1123 × 10^3

Prime Factorization of 21123

Prime Factorization 3 × 3 × 2347

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 7041
Product of the distinct prime numbers

The prime factorization of 21123 is 3 × 3 × 2347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 5, 64, 7, 429, 181, 7100, 5940, 6044, 4957, 335133, 712199, 5968271, 7534442, 81812832, 34591335, 948155941, 772354911, 6427520047, 4882907126

Basic calculations (n = 21123)

Multiplication

n×y
n×2 42246
n×3 63369
n×4 84492
n×5 105615

Division

n÷y
n÷2 10561.5
n÷3 7041
n÷3 5280.75
n÷5 4224.6

Exponentiation

ny
n2 446181129
n3 9424683987867
n4 199077599875714641
n5 4.2051161421747E+21

Nth Root

y√n
2√n 145.33753816547
3√n 27.643001650359
4√n 12.055601941233
5√n 7.327420577911

Divisors of 21123

1, 3, 9, 2347, 7041, 21123

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21122
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21123 can be divided by 6 positive divisors. The sum of these divisors (counting 21123) is 1, the average is 0.16666666666667.

Base conversion 21123

Base System Value
2 Binary 101001010000011
3 Ternary 1001222100
4 Quaternary 11022003
5 Quinary 1133443
6 Senary 241443
8 Octal 51203
10 Decimal 21123
12 Duodecimal 10283
16 Hexadecimal 5283
20 Vigesimal 2cg3
36 Base36 gar

Cryptographic Hash Functions

md5 72f9f967c43ce5c44ea12bf78ae63eaf
sha1 48d0777168549d1d5a00a5735d821b935d82f53d
sha256 c4eef1fedb35644c7940cb9c4410e64d07c51ab91b88b85380ac38ad8bfb7d70
sha512 a92ca46470417af1feaa71c7fb8576104171df575a19faf5cd0179221fb15610334d6bd1dde19a20eaf645ce4117aefd7afe99c8917baad8bbf8dd534d34e15d
ripemd-160 4c7690c9be7c688a5390fb63c5db08cc7101ddf7

21123 as geometric shapes

Circle

Radius = n
Diameter 42246
Circumference 132719.72324355
Area 1401719357.0368

Sphere

Radius = n
Volume 39478023971584
Surface area 5606877428.1472
Circumference 132719.72324355

Square

Length = n
Perimeter 84492
Area 446181129
Diagonal 29872.433078007

Cube

Length = n
Surface area 2677086774
Volume 9424683987867
Space diagonal 36586.109208277

Equilateral Triangle

Length = n
Perimeter 63369
Area 193202096.20161
Altitude 18293.054604139

Triangular Pyramid

Length = n
Surface area 193202096.20161
Volume 1110709659726.8
Height 9957.477692669