21875 (number)

21875 is an odd 5-digits composite number following 21874 and preceding 21876. In scientific notation, it is written as 2.1875 × 10^4. The sum of its digits is 23. It has a total of 5 prime factors and 12 positive divisors. There are 15000 positive integers (up to 21875) that are relatively prime to 21875.

Interesting facts

Basic properties

Name

Name twenty-one thousand eight hundred seventy-five

Notation

Scientific notation 2.1875 × 10^4
Engineering notation 2.1875 × 10^3

Prime Factorization of 21875

Prime Factorization 7 × 25 × 5 × 5 × 5

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 875
Product of the distinct prime numbers

The prime factorization of 21875 is 7 × 25 × 5 × 5 × 5. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 8, 74, 22, 41, 457, 6401, 7055, 78072, 51430, 401375, 912074, 583710, 6887365, 51139315, 62186691, 532534046, 40303108, 2361399079, 467583289

Basic calculations (n = 21875)

Multiplication

n×y
n×2 43750
n×3 65625
n×4 87500
n×5 109375

Division

n÷y
n÷2 10937.5
n÷3 7291.6666666667
n÷3 5468.75
n÷5 4375

Exponentiation

ny
n2 478515625
n3 10467529296875
n4 228977203369140625
n5 5.0088763237E+21

Nth Root

y√n
2√n 147.90199457749
3√n 27.967223552035
4√n 12.161496395489
5√n 7.3788658079728

Divisors of 21875

1, 5, 7, 25, 35, 125, 175, 625, 875, 3125, 4375, 21875

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21874
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21875 can be divided by 12 positive divisors. The sum of these divisors (counting 21875) is 1, the average is 0.083333333333333.

Base conversion 21875

Base System Value
2 Binary 101010101110011
3 Ternary 1010000012
4 Quaternary 11111303
5 Quinary 1200000
6 Senary 245135
8 Octal 52563
10 Decimal 21875
12 Duodecimal 107ab
16 Hexadecimal 5573
20 Vigesimal 2edf
36 Base36 gvn

Cryptographic Hash Functions

md5 4849ef4e3811c4b64c2029b7f6f67139
sha1 6a9006d0e9fe77845c7b4f8ca6273489b2f672e7
sha256 81f7c74cbd616d52086f559b78a81217e05651bae5410717ba687ea9076ecafd
sha512 e4cd748362dfeb485935389ca7074907efa3cd319b6f2d0099b86ca2fd95b68a625295b14dbcc0c1956d101bc15adaae81c8c93ce1df18e84cfd01e978ad2775
ripemd-160 06ab71b5502a83e7aaf1625725d8f625021719ec

21875 as geometric shapes

Circle

Radius = n
Diameter 43750
Circumference 137444.67859455
Area 1503301172.1279

Sphere

Radius = n
Volume 43846284187065
Surface area 6013204688.5117
Circumference 137444.67859455

Square

Length = n
Perimeter 87500
Area 478515625
Diagonal 30935.921676911

Cube

Length = n
Surface area 2871093750
Volume 10467529296875
Space diagonal 37888.611415569

Equilateral Triangle

Length = n
Perimeter 65625
Area 207203343.67889
Altitude 18944.305707785

Triangular Pyramid

Length = n
Surface area 207203343.67889
Volume 1233610158014.9
Height 10311.973892304