21494 (number)

21494 is an even 5-digits composite number following 21493 and preceding 21495. In scientific notation, it is written as 2.1494 × 10^4. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 9760 positive integers (up to 21494) that are relatively prime to 21494.

Interesting facts

Basic properties

Name

Name twenty-one thousand four hundred ninety-four

Notation

Scientific notation 2.1494 × 10^4
Engineering notation 2.1494 × 10^3

Prime Factorization of 21494

Prime Factorization 2 × 11 × 977

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21494
Product of the distinct prime numbers

The prime factorization of 21494 is 2 × 11 × 977. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 4, 16, 78, 450, 201, 7980, 8908, 52431, 11706, 16122, 139923, 3252668, 9165885, 564931, 66409278, 536146009, 618794892, 1889337543, 6443389208

Basic calculations (n = 21494)

Multiplication

n×y
n×2 42988
n×3 64482
n×4 85976
n×5 107470

Division

n÷y
n÷2 10747
n÷3 7164.6666666667
n÷3 5373.5
n÷5 4298.8

Exponentiation

ny
n2 461992036
n3 9930056821784
n4 213436641327425296
n5 4.5876071686917E+21

Nth Root

y√n
2√n 146.60832172834
3√n 27.803901941826
4√n 12.108192339418
5√n 7.352981087124

Divisors of 21494

1, 2, 11, 22, 977, 1954, 10747, 21494

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 -21493
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 21494 can be divided by 8 positive divisors. The sum of these divisors (counting 21494) is 1, the average is 0.125.

Base conversion 21494

Base System Value
2 Binary 101001111110110
3 Ternary 1002111002
4 Quaternary 11033312
5 Quinary 1141434
6 Senary 243302
8 Octal 51766
10 Decimal 21494
12 Duodecimal 10532
16 Hexadecimal 53f6
20 Vigesimal 2dee
36 Base36 gl2

Cryptographic Hash Functions

md5 d539ea6f856d9bb5765ae211a89c1573
sha1 eef302c9575f3c5882254bef2e2426559011be1d
sha256 278fdeecaae4603b03c6218c5029143fbe956a716141e71ac58477fae17cfe7f
sha512 333ffd19c9ac5318566772e0e99836d1eb2e1cc7c11914cf2abe81e256655ffc23c745ee11d43ed5fe5c1b06a354741367e9a7a2af5a08fd96a1fb55a3504ab7
ripemd-160 ec6ba21e451bb9fa56dc529cc14a1d49420a5558

21494 as geometric shapes

Circle

Radius = n
Diameter 42988
Circumference 135050.78499252
Area 1451390786.3146

Sphere

Radius = n
Volume 41594924748061
Surface area 5805563145.2584
Circumference 135050.78499252

Square

Length = n
Perimeter 85976
Area 461992036
Diagonal 30397.106309647

Cube

Length = n
Surface area 2771952216
Volume 9930056821784
Space diagonal 37228.700057885

Equilateral Triangle

Length = n
Perimeter 64482
Area 200048419.76105
Altitude 18614.350028943

Triangular Pyramid

Length = n
Surface area 200048419.76105
Volume 1170268419375.2
Height 10132.368769882