21894 (number)

21894 is an even 5-digits composite number following 21893 and preceding 21895. In scientific notation, it is written as 2.1894 × 10^4. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 7040 positive integers (up to 21894) that are relatively prime to 21894.

Interesting facts

Basic properties

Name

Name twenty-one thousand eight hundred ninety-four

Notation

Scientific notation 2.1894 × 10^4
Engineering notation 2.1894 × 10^3

Prime Factorization of 21894

Prime Factorization 2 × 3 × 41 × 89

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21894
Product of the distinct prime numbers

The prime factorization of 21894 is 2 × 3 × 41 × 89. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 55, 70, 290, 449, 8984, 5458, 33426, 33050, 767531, 913782, 641253, 6799743, 62987067, 84304131, 579182351, 125966503, 1140521905, 9304165869

Basic calculations (n = 21894)

Multiplication

n×y
n×2 43788
n×3 65682
n×4 87576
n×5 109470

Division

n÷y
n÷2 10947
n÷3 7298
n÷3 5473.5
n÷5 4378.8

Exponentiation

ny
n2 479347236
n3 10494828384984
n4 229773772660839696
n5 5.0306669786364E+21

Nth Root

y√n
2√n 147.96621235944
3√n 27.975318385945
4√n 12.164136317858
5√n 7.380147177269

Divisors of 21894

1, 2, 3, 6, 41, 82, 89, 123, 178, 246, 267, 534, 3649, 7298, 10947, 21894

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 -21893
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 21894 can be divided by 16 positive divisors. The sum of these divisors (counting 21894) is 1, the average is 0.0625.

Base conversion 21894

Base System Value
2 Binary 101010110000110
3 Ternary 1010000220
4 Quaternary 11112012
5 Quinary 1200034
6 Senary 245210
8 Octal 52606
10 Decimal 21894
12 Duodecimal 10806
16 Hexadecimal 5586
20 Vigesimal 2eee
36 Base36 gw6

Cryptographic Hash Functions

md5 96d159ddda271e1d08ee7b0351b6620b
sha1 9626b913d72c4f9bd87e9c4a92c14ca9aa2ac991
sha256 a3ef0d2e2e69abc31f3acbe5934081ed2c617074fe0bbb9ed62ee3919cf3dd8e
sha512 2cd600fce4540e29b63b78693cb339be877ae8eb02a8675e69cb7a0baa397945902de0a3d0196283a05c6f3c79b305a9fe0197a6c6149340707c3ef190ae700b
ripemd-160 94b802296429946028fb3f75cd3dce0243c4b7aa

21894 as geometric shapes

Circle

Radius = n
Diameter 43788
Circumference 137564.05911539
Area 1505913755.1362

Sphere

Radius = n
Volume 43960634339935
Surface area 6023655020.5447
Circumference 137564.05911539

Square

Length = n
Perimeter 87576
Area 479347236
Diagonal 30962.791734597

Cube

Length = n
Surface area 2876083416
Volume 10494828384984
Space diagonal 37921.520380913

Equilateral Triangle

Length = n
Perimeter 65682
Area 207563441.80493
Altitude 18960.760190456

Triangular Pyramid

Length = n
Surface area 207563441.80493
Volume 1236827386401.9
Height 10320.930578199