21897730 is an even 8-digits composite number following 21897729
and preceding 21897731 . In scientific notation, it is written as 2.1897730 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 8737792 positive integers (up to 21897730) that are relatively prime to 21897730.
21897730 has 16 divisors, whose sum is 39511800
The reverse of 21897730 is 03779812
Previous prime number is 449
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million eight hundred ninety-seven thousand seven hundred thirty
Scientific notation
2.1897730 × 10^7
Engineering notation
2.1897730 × 10^6
Prime Factorization
2 × 5 × 449 × 4877
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21897730
Product of the distinct prime numbers
The prime factorization of 21897730 is 2 × 5 × 449 × 4877.
Since it has a total of 4 prime factors.
9 , 6 , 6 , 12 , 145 , 53 , 878 , 5763 , 32124 , 30857 , 748511 , 939678 , 1290428 , 8239873 , 83961213 , 44943101 , 883716643 , 690726729 , 9852115617 , 5687472303
n×2
43795460
n×3
65693190
n×4
87590920
n×5
109488650
n÷2
10948865
n÷3
7299243.3333333
n÷3
5474432.5
n÷5
4379546
n2
479510579152900
n3
1.0500193194434E+22
n4
2.2993039551955E+29
n5
5.0349537198803E+36
2 √n
4679.5010417779
3 √n
279.76906979659
4 √n
68.406878614492
5 √n
29.381896144834
1 , 2 , 5 , 10 , 449 , 898 , 2245 , 4490 , 4877 , 9754 , 24385 , 48770 , 2189773 , 4379546 , 10948865 , 21897730
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
-21897729
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 21897730 can be divided by 16 positive divisors.
The sum of these divisors (counting 21897730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011100010001000000010
3
Ternary
1112012112001001
4
Quaternary
1103202020002
5
Quinary
21101211410
6
Senary
2101202214
8
Octal
123421002
10
Decimal
21897730
12
Duodecimal
740036a
16
Hexadecimal
14e2202
20
Vigesimal
6gh46a
36
Base36
d1cea
md5
b6d3bbc28fd60eaeae77c3e29b18982f
sha1
f271272c05b6253b06cacad62db11545085c88c0
sha256
0f9d16411ef3b09a60abc1512aa9e659b094695b8d108ba8b22c4acc50678755
sha512
2658ad320965e3ce59ef990f9e5859cca65a3f55e53b262a25f85cd0ceec68075f033d907d34cbb63ec0d60897e5bf6cad50f4b864b747a81effa44b8631ed2c
ripemd-160
a807e1ba0ab4a6c520fbd5893d6e9d5c9160ba92
Diameter
43795460
Circumference
137587495.39659
Area
1.5064269127853E+15
Volume
4.3983106401209E+22
Surface area
6.0257076511414E+15
Circumference
137587495.39659
Perimeter
87590920
Area
479510579152900
Diagonal
30968066.751184
Surface area
2877063474917400
Volume
1.0500193194434E+22
Space diagonal
37927980.930425
Perimeter
65693190
Area
2.076341714649E+14
Altitude
18963990.465213
Surface area
2.076341714649E+14
Volume
1.2374596352588E+21
Height
10322688.917061