21897430 is an even 8-digits composite number following 21897429
and preceding 21897431 . In scientific notation, it is written as 2.1897430 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 8758968 positive integers (up to 21897430) that are relatively prime to 21897430.
21897430 has 8 divisors, whose sum is 39415392
The reverse of 21897430 is 03479812
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred ninety-seven thousand four hundred thirty
Scientific notation
2.1897430 × 10^7
Engineering notation
2.1897430 × 10^6
Prime Factorization
2 × 5 × 2189743
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21897430
Product of the distinct prime numbers
The prime factorization of 21897430 is 2 × 5 × 2189743.
Since it has a total of 3 prime factors.
6 , 4 , 5 , 97 , 152 , 124 , 4603 , 2387 , 31265 , 49697 , 611838 , 943866 , 9185845 , 9652165 , 80520926 , 35005037 , 107500708 , 688822803 , 9605240659 , 9469182023
n×2
43794860
n×3
65692290
n×4
87589720
n×5
109487150
n÷2
10948715
n÷3
7299143.3333333
n÷3
5474357.5
n÷5
4379486
n2
479497440604900
n3
1.0499761640825E+22
n4
2.2991779554665E+29
n5
5.0346088337371E+36
2 √n
4679.4689869685
3 √n
279.76779217399
4 √n
68.406644318871
5 √n
29.381815637702
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
-21897429
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 21897430 can be divided by 8 positive divisors.
The sum of these divisors (counting 21897430) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100010000011010110
3
Ternary
1112012111121221
4
Quaternary
1103202003112
5
Quinary
21101204210
6
Senary
2101200554
8
Octal
123420326
10
Decimal
21897430
12
Duodecimal
740015a
16
Hexadecimal
14e20d6
20
Vigesimal
6gh3ba
36
Base36
d1c5y
md5
dd554d4cb5260a711e0bdef41d2c3bd1
sha1
df53ff2701a7443c22057ed4146fbe9af718ab7e
sha256
8689511f871d489932b94f3aa1598b9c4b2abf9f0652acb52af4bde78cdf3a29
sha512
2b1c447d5ad293ae956db810ed17059cd5c3542325ca85e42971f8e4b882e4aebff17533c7c2b72dcd2b3678c5913a4e3752236a85d08faed410bf6a7ee45116
ripemd-160
6742a87ba7546c734ca1eaafbfd61c24600aa42c
Diameter
43794860
Circumference
137585610.44099
Area
1.5063856368195E+15
Volume
4.3981298713679E+22
Surface area
6.0255425472778E+15
Circumference
137585610.44099
Perimeter
87589720
Area
479497440604900
Diagonal
30967642.487115
Surface area
2876984643629400
Volume
1.0499761640825E+22
Space diagonal
37927461.315183
Perimeter
65692290
Area
2.0762848230673E+14
Altitude
18963730.657591
Surface area
2.0762848230673E+14
Volume
1.2374087761783E+21
Height
10322547.495705