21681804 (number)

21681804 is an even 8-digits composite number following 21681803 and preceding 21681805. In scientific notation, it is written as 2.1681804 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 7059024 positive integers (up to 21681804) that are relatively prime to 21681804.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-one thousand eight hundred four

Notation

Scientific notation 2.1681804 × 10^7
Engineering notation 2.1681804 × 10^6

Prime Factorization of 21681804

Prime Factorization 2 × 2 × 3 × 43 × 42019

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10840902
Product of the distinct prime numbers

The prime factorization of 21681804 is 2 × 2 × 3 × 43 × 42019. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 89, 47, 535, 686, 5591, 6634, 51164, 90795, 865176, 862962, 275156, 2224688, 53631148, 37218582, 753925698, 325285025, 7499364985, 2126341147

Basic calculations (n = 21681804)

Multiplication

n×y
n×2 43363608
n×3 65045412
n×4 86727216
n×5 108409020

Division

n÷y
n÷2 10840902
n÷3 7227268
n÷3 5420451
n÷5 4336360.8

Exponentiation

ny
n2 470100624694416
n3 1.0192629604902E+22
n4 2.2099459733808E+29
n5 4.7915615445432E+36

Nth Root

y√n
2√n 4656.372407787
3√n 278.84646168544
4√n 68.237617248751
5√n 29.323721274355

Divisors of 21681804

1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 42019, 84038, 126057, 168076, 252114, 504228, 1806817, 3613634, 5420451, 7227268, 10840902, 21681804

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21681803
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21681804 can be divided by 24 positive divisors. The sum of these divisors (counting 21681804) is 1, the average is 0.041666666666667.

Base conversion 21681804

Base System Value
2 Binary 1010010101101011010001100
3 Ternary 1111210112211210
4 Quaternary 1102231122030
5 Quinary 21022304204
6 Senary 2052414420
8 Octal 122553214
10 Decimal 21681804
12 Duodecimal 7317410
16 Hexadecimal 14ad68c
20 Vigesimal 6fa4a4
36 Base36 cwpsc

Cryptographic Hash Functions

md5 50d87a8c730019f8dd1255d2d542a3f4
sha1 da7f1d99362a1d6516f0dfc3388c3db9760e51ea
sha256 821c07e3d207ee4137c4891856ce1bcbdbaaf59a0f9fe43ae58d6b14ea0bba9c
sha512 3390694d9e9bece319acc21e5e2eccc683f7b23cac198cbd7f8a682a7406a3cd87101e5549cf0854511714a0a72423ec2c4bba9f35e9527321d8b21bbea3be9b
ripemd-160 999277d5fb40af83a3a0260bc520b309086f236f

21681804 as geometric shapes

Circle

Radius = n
Diameter 43363608
Circumference 136230792.32595
Area 1.4768646689879E+15

Sphere

Radius = n
Volume 4.2694787050029E+22
Surface area 5.9074586759518E+15
Circumference 136230792.32595

Square

Length = n
Perimeter 86727216
Area 470100624694416
Diagonal 30662701.273515

Cube

Length = n
Surface area 2820603748166496
Volume 1.0192629604902E+22
Space diagonal 37553986.12775

Equilateral Triangle

Length = n
Perimeter 65045412
Area 2.0355954166015E+14
Altitude 18776993.063875

Triangular Pyramid

Length = n
Surface area 2.0355954166015E+14
Volume 1.2012129186248E+21
Height 10220900.424505