21103885 is an odd 8-digits composite number following 21103884
and preceding 21103886 . In scientific notation, it is written as 2.1103885 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14444800 positive integers (up to 21103885) that are relatively prime to 21103885.
21103885 has 16 divisors, whose sum is 29253312
The reverse of 21103885 is 58830112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred three thousand eight hundred eighty-five
Scientific notation
2.1103885 × 10^7
Engineering notation
2.1103885 × 10^6
Prime Factorization
17 × 5 × 11 × 22571
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21103885
Product of the distinct prime numbers
The prime factorization of 21103885 is 17 × 5 × 11 × 22571.
Since it has a total of 4 prime factors.
10 , 9 , 56 , 80 , 174 , 273 , 5584 , 3944 , 24665 , 40863 , 368328 , 973962 , 8691710 , 6207524 , 95102033 , 35665356 , 26132833 , 708731958 , 7258583410 , 5428011905
n×2
42207770
n×3
63311655
n×4
84415540
n×5
105519425
n÷2
10551942.5
n÷3
7034628.3333333
n÷3
5275971.25
n÷5
4220777
n2
445373962093225
n3
9.3991208780098E+21
n4
1.9835796611062E+29
n5
4.1861237056324E+36
2 √n
4593.8964942628
3 √n
276.34660735318
4 √n
67.778289254471
5 √n
29.165705239765
1 , 5 , 11 , 17 , 55 , 85 , 187 , 935 , 22571 , 112855 , 248281 , 383707 , 1241405 , 1918535 , 4220777 , 21103885
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
-21103884
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 21103885 can be divided by 16 positive divisors.
The sum of these divisors (counting 21103885) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100000010100001101
3
Ternary
1110201012002101
4
Quaternary
1100200110031
5
Quinary
20400311020
6
Senary
2032155101
8
Octal
120402415
10
Decimal
21103885
12
Duodecimal
7098a91
16
Hexadecimal
142050d
20
Vigesimal
6bhje5
36
Base36
ckbv1
md5
95dcd1a4e95b75981867f4da81bd7bd0
sha1
80477abbff432582709533f52801e2738094ed2d
sha256
f6bef84a6b55af89f13dc677e600c1dc0de1af2d5f4c6fb8878577aad4effcfd
sha512
3b9967bde3d16f6bdee36cc8ee1f3d5adb9b8884524dc9507b5ca95c99bba091f04b4357ef7db47fba8627385fa632558b1f348bf504275744df744415e6207d
ripemd-160
5a4435d23bcd4d2b8396929c1fdf9d57bdd646ff
Diameter
42207770
Circumference
132599620.15641
Area
1.3991835674123E+15
Volume
3.9370945467411E+22
Surface area
5.596734269649E+15
Circumference
132599620.15641
Perimeter
84415540
Area
445373962093225
Diagonal
29845400.385762
Surface area
2672243772559350
Volume
9.3991208780098E+21
Space diagonal
36553001.057091
Perimeter
63311655
Area
1.9285258267843E+14
Altitude
18276500.528545
Surface area
1.9285258267843E+14
Volume
1.1076970183388E+21
Height
9948466.795254