21406 (number)

21406 is an even 5-digits composite number following 21405 and preceding 21407. In scientific notation, it is written as 2.1406 × 10^4. The sum of its digits is 13. It has a total of 4 prime factors and 16 positive divisors. There are 8280 positive integers (up to 21406) that are relatively prime to 21406.

Interesting facts

Basic properties

Name

Name twenty-one thousand four hundred six

Notation

Scientific notation 2.1406 × 10^4
Engineering notation 2.1406 × 10^3

Prime Factorization of 21406

Prime Factorization 2 × 7 × 11 × 139

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21406
Product of the distinct prime numbers

The prime factorization of 21406 is 2 × 7 × 11 × 139. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 1, 10, 56, 700, 178, 6668, 2156, 93710, 75887, 559292, 829426, 8195635, 8677702, 63342458, 14789371, 238423038, 749768396, 716545068, 9055833458

Basic calculations (n = 21406)

Multiplication

n×y
n×2 42812
n×3 64218
n×4 85624
n×5 107030

Division

n÷y
n÷2 10703
n÷3 7135.3333333333
n÷3 5351.5
n÷5 4281.2

Exponentiation

ny
n2 458216836
n3 9808589591416
n4 209962668793850896
n5 4.4944608882012E+21

Nth Root

y√n
2√n 146.30789452384
3√n 27.765905444959
4√n 12.095780029574
5√n 7.3469503379063

Divisors of 21406

1, 2, 7, 11, 14, 22, 77, 139, 154, 278, 973, 1529, 1946, 3058, 10703, 21406

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21405
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21406 can be divided by 16 positive divisors. The sum of these divisors (counting 21406) is 1, the average is 0.0625.

Base conversion 21406

Base System Value
2 Binary 101001110011110
3 Ternary 1002100211
4 Quaternary 11032132
5 Quinary 1141111
6 Senary 243034
8 Octal 51636
10 Decimal 21406
12 Duodecimal 1047a
16 Hexadecimal 539e
20 Vigesimal 2da6
36 Base36 gim

Cryptographic Hash Functions

md5 9fe06b33ea459f011178ef3156ff09c7
sha1 f2491f1b69ceb50c866e2df8431126ab81bf4e6a
sha256 7892e55a41b595e6f212dd41694430645d4d2d6b1ab6d4284158d2001a18db3f
sha512 4cd946d476e2c6a9c337de4953c93a11801e24aa475a0821f2796b275f5e5e8e9bf555b068564b1c1536c1c372c8326ae6f7ea003abaee219fea0c9c81424832
ripemd-160 2fdd041d0318ed8cc233be3cee0ed90f0c3098bb

21406 as geometric shapes

Circle

Radius = n
Diameter 42812
Circumference 134497.86468549
Area 1439530645.7288

Sphere

Radius = n
Volume 41086124003293
Surface area 5758122582.915
Circumference 134497.86468549

Square

Length = n
Perimeter 85624
Area 458216836
Diagonal 30272.655516158

Cube

Length = n
Surface area 2749301016
Volume 9808589591416
Space diagonal 37076.279586819

Equilateral Triangle

Length = n
Perimeter 64218
Area 198413710.20886
Altitude 18538.13979341

Triangular Pyramid

Length = n
Surface area 198413710.20886
Volume 1155953368994.3
Height 10090.885172053