21495 (number)

21495 is an odd 5-digits composite number following 21494 and preceding 21496. In scientific notation, it is written as 2.1495 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 11456 positive integers (up to 21495) that are relatively prime to 21495.

Interesting facts

Basic properties

Name

Name twenty-one thousand four hundred ninety-five

Notation

Scientific notation 2.1495 × 10^4
Engineering notation 2.1495 × 10^3

Prime Factorization of 21495

Prime Factorization 3 × 5 × 1433

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21495
Product of the distinct prime numbers

The prime factorization of 21495 is 3 × 5 × 1433. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 4, 5, 16, 181, 69, 2630, 2166, 2068, 44935, 388984, 66470, 7382415, 9722630, 12331896, 94632899, 195859780, 192448610, 6777251424, 6033383529

Basic calculations (n = 21495)

Multiplication

n×y
n×2 42990
n×3 64485
n×4 85980
n×5 107475

Division

n÷y
n÷2 10747.5
n÷3 7165
n÷3 5373.75
n÷5 4299

Exponentiation

ny
n2 462035025
n3 9931442862375
n4 213476364326750625
n5 4.5886744512035E+21

Nth Root

y√n
2√n 146.61173213628
3√n 27.804333123718
4√n 12.108333169197
5√n 7.3530495047685

Divisors of 21495

1, 3, 5, 15, 1433, 4299, 7165, 21495

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 -21494
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 21495 can be divided by 8 positive divisors. The sum of these divisors (counting 21495) is 1, the average is 0.125.

Base conversion 21495

Base System Value
2 Binary 101001111110111
3 Ternary 1002111010
4 Quaternary 11033313
5 Quinary 1141440
6 Senary 243303
8 Octal 51767
10 Decimal 21495
12 Duodecimal 10533
16 Hexadecimal 53f7
20 Vigesimal 2def
36 Base36 gl3

Cryptographic Hash Functions

md5 3682cca356dc22eb5a9bbc009412d4bb
sha1 3bcb6c06cbb88d2dc138abbd4689a2c20b82ce09
sha256 adeed5c1fd73a7d996b34e96d336f4e465da58563da3f30198f1097535019e56
sha512 0965168035ee9e04bc3ab82b2181553aabdbdad0564b3ece3c9e92ff5e75a33e5fa9bf9772b1ad03a9d99376d9483529e43dd7a3a0a04b12c8aaad7ce53c0b65
ripemd-160 1030e0c6d27928b0115ce25eae3104e5de8d1f90

21495 as geometric shapes

Circle

Radius = n
Diameter 42990
Circumference 135057.06817783
Area 1451525840.2412

Sphere

Radius = n
Volume 41600730581312
Surface area 5806103360.9647
Circumference 135057.06817783

Square

Length = n
Perimeter 85980
Area 462035025
Diagonal 30398.52052321

Cube

Length = n
Surface area 2772210150
Volume 9931442862375
Space diagonal 37230.432108693

Equilateral Triangle

Length = n
Perimeter 64485
Area 200067034.54409
Altitude 18615.216054347

Triangular Pyramid

Length = n
Surface area 200067034.54409
Volume 1170431765825.3
Height 10132.840174403