21869438 is an even 8-digits composite number following 21869437
and preceding 21869439 . In scientific notation, it is written as 2.1869438 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 10934718 positive integers (up to 21869438) that are relatively prime to 21869438.
21869438 has 4 divisors, whose sum is 32804160
The reverse of 21869438 is 83496812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million eight hundred sixty-nine thousand four hundred thirty-eight
Scientific notation
2.1869438 × 10^7
Engineering notation
2.1869438 × 10^6
Prime Factorization
2 × 10934719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21869438
Product of the distinct prime numbers
The prime factorization of 21869438 is 2 × 10934719.
Since it has a total of 2 prime factors.
6 , 1 , 98 , 72 , 887 , 288 , 637 , 6715 , 97214 , 61857 , 705324 , 412987 , 1951999 , 2846296 , 66559575 , 93843325 , 642687388 , 432581340 , 2143636579 , 3361783930
n×2
43738876
n×3
65608314
n×4
87477752
n×5
109347190
n÷2
10934719
n÷3
7289812.6666667
n÷3
5467359.5
n÷5
4373887.6
n2
478272318435844
n3
1.0459546815149E+22
n4
2.28744410582E+29
n5
5.0025117050695E+36
2 √n
4676.4770928553
3 √n
279.64853009054
4 √n
68.384772375546
5 √n
29.374299900449
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
-21869437
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 21869438 can be divided by 4 positive divisors.
The sum of these divisors (counting 21869438) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011011001101111110
3
Ternary
1112011002020012
4
Quaternary
1103123031332
5
Quinary
21044310223
6
Senary
2100423222
8
Octal
123331576
10
Decimal
21869438
12
Duodecimal
73a7b12
16
Hexadecimal
14db37e
20
Vigesimal
6gddbi
36
Base36
d0qke
md5
1c7ba1093aa6d5639e3a2bcf835c43ae
sha1
4c7f0529890caf9969b43ed915c3ab6ccf7c7d5c
sha256
871fe80f9eb82aed786e509ee28af99e737094105bf09020ed1ee9a4f85fd4e5
sha512
2feacaef97358a7e7513aa8ea56dc585f849effdd5c0452aa4687dabe1274b5123ae73185fdb1ec1c0b0ef340c4b29c4754f8cf9e2f504ee4b4380b002cd54ad
ripemd-160
c32b06f9a1470a1fa43c9b264e807d7c63dc4e08
Diameter
43738876
Circumference
137409731.51787
Area
1.5025368020134E+15
Volume
4.3812847245801E+22
Surface area
6.0101472080536E+15
Circumference
137409731.51787
Perimeter
87477752
Area
478272318435844
Diagonal
30928055.821078
Surface area
2869633910615064
Volume
1.0459546815149E+22
Space diagonal
37878977.748977
Perimeter
65608314
Area
2.0709798884616E+14
Altitude
18939488.874489
Surface area
2.0709798884616E+14
Volume
1.2326694135217E+21
Height
10309351.940359