21608081 is an odd 8-digits composite number following 21608080
and preceding 21608082 . In scientific notation, it is written as 2.1608081 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 19602000 positive integers (up to 21608081) that are relatively prime to 21608081.
21608081 has 8 divisors, whose sum is 23622528
The reverse of 21608081 is 18080612
Previous prime number is 3631
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million six hundred eight thousand eighty-one
Scientific notation
2.1608081 × 10^7
Engineering notation
2.1608081 × 10^6
Prime Factorization
11 × 3631 × 541
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21608081
Product of the distinct prime numbers
The prime factorization of 21608081 is 11 × 3631 × 541.
Since it has a total of 3 prime factors.
1 , 10 , 87 , 79 , 228 , 956 , 3813 , 6705 , 21881 , 65821 , 566214 , 893464 , 8803470 , 6943141 , 50876171 , 27438823 , 559913495 , 808170766 , 2960329830 , 8663386818
n×2
43216162
n×3
64824243
n×4
86432324
n×5
108040405
n÷2
10804040.5
n÷3
7202693.6666667
n÷3
5402020.25
n÷5
4321616.2
n2
466909164502561
n3
1.0089011046214E+22
n4
2.1800416789648E+29
n5
4.7106517182447E+36
2 √n
4648.4493113295
3 √n
278.53005594524
4 √n
68.179537335842
5 √n
29.303752649945
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
-21608080
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 21608081 can be divided by 8 positive divisors.
The sum of these divisors (counting 21608081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010011011011010010001
3
Ternary
1111122210201022
4
Quaternary
1102123122101
5
Quinary
21012424311
6
Senary
2051045225
8
Octal
122333221
10
Decimal
21608081
12
Duodecimal
72a0815
16
Hexadecimal
149b691
20
Vigesimal
6f1041
36
Base36
cv4wh
md5
f2cbd7cfdfed8676ff8db3462428d5c7
sha1
7ddc55e063256a925a5fd955a1fcc991322b54ac
sha256
944f047e2424f19f230f4f11d6963f5238a4887b70ecfa1dcbcf0521eb6007e6
sha512
03c73ec609638479e0c7f0aacd972a9f6d1f855c2e2a6a4943cbe1a2136d36a7cd4956e8454d0a9124578997d06377e08afa62e91dc42902c897379193d9e766
ripemd-160
8e2cf1bc6a4a1747269429d666fe067a9dd7b6cc
Diameter
43216162
Circumference
135767577.05555
Area
1.466838401095E+15
Volume
4.2260750646361E+22
Surface area
5.86735360438E+15
Circumference
135767577.05555
Perimeter
86432324
Area
466909164502561
Diagonal
30558441.207056
Surface area
2801454987015366
Volume
1.0089011046214E+22
Space diagonal
37426294.146064
Perimeter
64824243
Area
2.0217759885949E+14
Altitude
18713147.073032
Surface area
2.0217759885949E+14
Volume
1.1890013543739E+21
Height
10186147.069019