21478 (number)

21478 is an even 5-digits composite number following 21477 and preceding 21479. In scientific notation, it is written as 2.1478 × 10^4. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 10738 positive integers (up to 21478) that are relatively prime to 21478.

Interesting facts

Basic properties

Name

Name twenty-one thousand four hundred seventy-eight

Notation

Scientific notation 2.1478 × 10^4
Engineering notation 2.1478 × 10^3

Prime Factorization of 21478

Prime Factorization 2 × 10739

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21478
Product of the distinct prime numbers

The prime factorization of 21478 is 2 × 10739. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 5, 37, 46, 773, 330, 5970, 2428, 59959, 96407, 72338, 700060, 8263730, 3573679, 77978216, 91600076, 425242709, 708928620, 8948794941, 9020875006

Basic calculations (n = 21478)

Multiplication

n×y
n×2 42956
n×3 64434
n×4 85912
n×5 107390

Division

n÷y
n÷2 10739
n÷3 7159.3333333333
n÷3 5369.5
n÷5 4295.6

Exponentiation

ny
n2 461304484
n3 9907897707352
n4 212801826958506256
n5 4.5705576394148E+21

Nth Root

y√n
2√n 146.55374440798
3√n 27.797001211994
4√n 12.105938394358
5√n 7.3518860583389

Divisors of 21478

1, 2, 10739, 21478

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21477
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21478 can be divided by 4 positive divisors. The sum of these divisors (counting 21478) is 1, the average is 0.25.

Base conversion 21478

Base System Value
2 Binary 101001111100110
3 Ternary 1002110111
4 Quaternary 11033212
5 Quinary 1141403
6 Senary 243234
8 Octal 51746
10 Decimal 21478
12 Duodecimal 1051a
16 Hexadecimal 53e6
20 Vigesimal 2ddi
36 Base36 gkm

Cryptographic Hash Functions

md5 9063366e3ba3efafeddfb78e4e422c62
sha1 fa2b0533b2597abc49488216830db58205668934
sha256 40e22c94e5bcf5c0c1e35367522d403caed25e9f3074ffc8d5053665ac10de9a
sha512 a1d6513a80e06e7366141e0ce2f50b3c7e71114f05d5574d021e8a647a26bbd243b5b3a084ca548632a407cad35cbd14f6a86ad61c43ac35c55c0798e5ffc83f
ripemd-160 2ccdfd56c760374955f7559d6ca56a4d7df215d6

21478 as geometric shapes

Circle

Radius = n
Diameter 42956
Circumference 134950.2540276
Area 1449230778.0024

Sphere

Radius = n
Volume 41502104866582
Surface area 5796923112.0097
Circumference 134950.2540276

Square

Length = n
Perimeter 85912
Area 461304484
Diagonal 30374.478892649

Cube

Length = n
Surface area 2767826904
Volume 9907897707352
Space diagonal 37200.987244964

Equilateral Triangle

Length = n
Perimeter 64434
Area 199750701.01184
Altitude 18600.493622482

Triangular Pyramid

Length = n
Surface area 199750701.01184
Volume 1167656942695.2
Height 10124.82629755