21898081 is an odd 8-digits composite number following 21898080
and preceding 21898082 . In scientific notation, it is written as 2.1898081 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21884692 positive integers (up to 21898081) that are relatively prime to 21898081.
21898081 has 4 divisors, whose sum is 21911472
The reverse of 21898081 is 18089812
Previous prime number is 1907
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million eight hundred ninety-eight thousand eighty-one
Scientific notation
2.1898081 × 10^7
Engineering notation
2.1898081 × 10^6
Prime Factorization
1907 × 11483
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21898081
Product of the distinct prime numbers
The prime factorization of 21898081 is 1907 × 11483.
Since it has a total of 2 prime factors.
4 , 6 , 84 , 26 , 356 , 168 , 6948 , 3551 , 45564 , 85014 , 629185 , 487875 , 9308934 , 5979697 , 13978382 , 74281330 , 952543813 , 232243415 , 9420229076 , 7117362681
n×2
43796162
n×3
65694243
n×4
87592324
n×5
109490405
n÷2
10949040.5
n÷3
7299360.3333333
n÷3
5474520.25
n÷5
4379616.2
n2
479525951482561
n3
1.0500698127167E+22
n4
2.2994513814526E+29
n5
5.035357260661E+36
2 √n
4679.5385456261
3 √n
279.77056460022
4 √n
68.407152737313
5 √n
29.381990337058
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
-21898080
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 21898081 can be divided by 4 positive divisors.
The sum of these divisors (counting 21898081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100010001101100001
3
Ternary
1112012112112001
4
Quaternary
1103202031201
5
Quinary
21101214311
6
Senary
2101204001
8
Octal
123421541
10
Decimal
21898081
12
Duodecimal
7400601
16
Hexadecimal
14e2361
20
Vigesimal
6gh541
36
Base36
d1co1
md5
60b5c9e4f71d14e4be7411be2e38835e
sha1
8bf5a048aafbc1ef9d2b9c36bcb3d32ac52bd74e
sha256
75fec573268f93bcd5f683a4872bd990cb1cae867e88ec22e71d115bdf6862d2
sha512
9d3e15e552b0f47f5908f21bdfb1c5ea66d921c08e0dc408877080c44cfbf769477457205cbaf7e63e5a4f411a9f30759af6fec63da9eebd695d878ab8f35276
ripemd-160
0fbf40492f0562d69c72f64dbfba7eca6e5f5272
Diameter
43796162
Circumference
137589700.79463
Area
1.5064752063833E+15
Volume
4.3985221458497E+22
Surface area
6.0259008255331E+15
Circumference
137589700.79463
Perimeter
87592324
Area
479525951482561
Diagonal
30968563.140145
Surface area
2877155708895366
Volume
1.0500698127167E+22
Space diagonal
37928588.880259
Perimeter
65694243
Area
2.076408278789E+14
Altitude
18964294.440129
Surface area
2.076408278789E+14
Volume
1.2375191421521E+21
Height
10322854.380048