21809770 is an even 8-digits composite number following 21809769
and preceding 21809771 . In scientific notation, it is written as 2.1809770 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 8706304 positive integers (up to 21809770) that are relatively prime to 21809770.
21809770 has 16 divisors, whose sum is 39336840
The reverse of 21809770 is 07790812
Previous prime number is 569
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred nine thousand seven hundred seventy
Scientific notation
2.1809770 × 10^7
Engineering notation
2.1809770 × 10^6
Prime Factorization
2 × 5 × 569 × 3833
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21809770
Product of the distinct prime numbers
The prime factorization of 21809770 is 2 × 5 × 569 × 3833.
Since it has a total of 4 prime factors.
2 , 9 , 87 , 38 , 117 , 560 , 2369 , 3078 , 36755 , 86661 , 689586 , 660937 , 1053830 , 4024163 , 51407253 , 82175550 , 529503293 , 789666472 , 3019980967 , 7727469275
n×2
43619540
n×3
65429310
n×4
87239080
n×5
109048850
n÷2
10904885
n÷3
7269923.3333333
n÷3
5452442.5
n÷5
4361954
n2
475666067452900
n3
1.0374167527952E+22
n4
2.2625820772611E+29
n5
4.9346394711186E+36
2 √n
4670.0931468227
3 √n
279.39396987102
4 √n
68.338079771257
5 √n
29.358253565118
1 , 2 , 5 , 10 , 569 , 1138 , 2845 , 3833 , 5690 , 7666 , 19165 , 38330 , 2180977 , 4361954 , 10904885 , 21809770
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
-21809769
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 21809770 can be divided by 16 positive divisors.
The sum of these divisors (counting 21809770) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011001100101001101010
3
Ternary
1112001001101021
4
Quaternary
1103030221222
5
Quinary
21040403040
6
Senary
2055243054
8
Octal
123145152
10
Decimal
21809770
12
Duodecimal
737948a
16
Hexadecimal
14cca6a
20
Vigesimal
6g648a
36
Base36
czgiy
md5
8cb7877d47001a703633d709825cf65e
sha1
c8270e32f5b6cbffccc2f786b38cf9c31059c3dd
sha256
eb2e8d2449f3783013cd61c948ed88ff3d8482e74f9824e19f4cf9b06d09bcfb
sha512
2303bccd239cbf528ff7de1fcf842a9483524bd1522a6794ec6e9a1faba43f6d71b13d83ca14f7bb42a51a168881ebd0c286325fa9b44653392c80005dc7727c
ripemd-160
8be23ef51f20fbb2818b04d42320bdcf3539be30
Diameter
43619540
Circumference
137034826.41697
Area
1.494349023072E+15
Volume
4.3455211323899E+22
Surface area
5.9773960922879E+15
Circumference
137034826.41697
Perimeter
87239080
Area
475666067452900
Diagonal
30843672.526238
Surface area
2853996404717400
Volume
1.0374167527952E+22
Space diagonal
37775629.741391
Perimeter
65429310
Area
2.0596944906623E+14
Altitude
18887814.870696
Surface area
2.0596944906623E+14
Volume
1.2226073680301E+21
Height
10281224.175413