21559985 is an odd 8-digits composite number following 21559984
and preceding 21559986 . In scientific notation, it is written as 2.1559985 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 16846704 positive integers (up to 21559985) that are relatively prime to 21559985.
21559985 has 8 divisors, whose sum is 26473920
The reverse of 21559985 is 58995512
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million five hundred fifty-nine thousand nine hundred eighty-five
Scientific notation
2.1559985 × 10^7
Engineering notation
2.1559985 × 10^6
Prime Factorization
5 × 43 × 100279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21559985
Product of the distinct prime numbers
The prime factorization of 21559985 is 5 × 43 × 100279.
Since it has a total of 3 prime factors.
9 , 10 , 19 , 30 , 269 , 344 , 8921 , 63 , 56379 , 56795 , 618287 , 228922 , 9328688 , 8073996 , 81237507 , 65768795 , 469752238 , 393707312 , 4593069690 , 5094837935
n×2
43119970
n×3
64679955
n×4
86239940
n×5
107799925
n÷2
10779992.5
n÷3
7186661.6666667
n÷3
5389996.25
n÷5
4311997
n2
464832953200225
n3
1.0021791498503E+22
n4
2.1606967438084E+29
n5
4.6584589386058E+36
2 √n
4643.2730912579
3 √n
278.32324854596
4 √n
68.141566545376
5 √n
29.290695962532
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
-21559984
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 21559985 can be divided by 8 positive divisors.
The sum of these divisors (counting 21559985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001111101010110001
3
Ternary
1111120100201222
4
Quaternary
1102033222301
5
Quinary
21004404420
6
Senary
2050034425
8
Octal
122175261
10
Decimal
21559985
12
Duodecimal
7278a15
16
Hexadecimal
148fab1
20
Vigesimal
6eejj5
36
Base36
cu3sh
md5
16dc8a12afd0c67245558df542e06346
sha1
6713a0c23b68e423eeecc490b882a77909e95b63
sha256
60007ecd06881274a58d42b5e3093ccc549099076925e6f91a4d507d00d1ab4c
sha512
430fc9e0113ef81feb46cd701a6eb7fc22bb2a93623d986a4a6280e0f85e6f52068e028728dcd8c32a07dec4a9a199d8893504921d3dc81fbb9c9a9590c48713
ripemd-160
2c821933cc69e63a66aee505f0551e8d52e34b11
Diameter
43119970
Circumference
135465380.97501
Area
1.4603157909203E+15
Volume
4.1979182063339E+22
Surface area
5.8412631636811E+15
Circumference
135465380.97501
Perimeter
86239940
Area
464832953200225
Diagonal
30490423.19156
Surface area
2788997719201350
Volume
1.0021791498503E+22
Space diagonal
37342989.430423
Perimeter
64679955
Area
2.0127857299377E+14
Altitude
18671494.715211
Surface area
2.0127857299377E+14
Volume
1.1810794547048E+21
Height
10163474.397187