21105875 is an odd 8-digits composite number following 21105874
and preceding 21105876 . In scientific notation, it is written as 2.1105875 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 14472000 positive integers (up to 21105875) that are relatively prime to 21105875.
21105875 has 8 divisors, whose sum is 22578192
The reverse of 21105875 is 57850112
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred five thousand eight hundred seventy-five
Scientific notation
2.1105875 × 10^7
Engineering notation
2.1105875 × 10^6
Prime Factorization
35 × 25 × 24121
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21105875
Product of the distinct prime numbers
The prime factorization of 21105875 is 35 × 25 × 24121.
Since it has a total of 3 prime factors.
4 , 6 , 74 , 80 , 657 , 326 , 3265 , 8314 , 816 , 86711 , 210307 , 662160 , 8911932 , 4215380 , 51722294 , 15811333 , 105473598 , 160396004 , 8675989974 , 116991698
n×2
42211750
n×3
63317625
n×4
84423500
n×5
105529375
n÷2
10552937.5
n÷3
7035291.6666667
n÷3
5276468.75
n÷5
4221175
n2
445457959515625
n3
9.4017800112918E+21
n4
1.9843279369582E+29
n5
4.1880977396449E+36
2 √n
4594.1130808895
3 √n
276.35529315462
4 √n
67.779886993779
5 √n
29.166255257587
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
-21105874
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 21105875 can be divided by 8 positive divisors.
The sum of these divisors (counting 21105875) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100000110011010011
3
Ternary
1110201021211002
4
Quaternary
1100200303103
5
Quinary
20400342000
6
Senary
2032212215
8
Octal
120406323
10
Decimal
21105875
12
Duodecimal
709a06b
16
Hexadecimal
1420cd3
20
Vigesimal
6bi4df
36
Base36
ckdeb
md5
7cbe04c33fc25a57ca280d36bfe38fa4
sha1
7c5e267b37bc8233a9c1bd7f299548ed221d37b4
sha256
b49e916db08b78e3d09c839428edbb7b9144ee379c0b51ce1550f5571f51523e
sha512
b4237e68f5f25fa6eb00588275a3db82d3383db8084f8396c54afb8d0ab74526f59b6a9b6ba9fc4b1955d134bb1308337c0c633a6de19784ed4c6f6a87a3beda
ripemd-160
49893b16272a008c3bb3bf20d587138ba564a880
Diameter
42211750
Circumference
132612123.69517
Area
1.3994474530974E+15
Volume
3.9382084018856E+22
Surface area
5.5977898123895E+15
Circumference
132612123.69517
Perimeter
84423500
Area
445457959515625
Diagonal
29848214.670751
Surface area
2672747757093750
Volume
9.4017800112918E+21
Space diagonal
36556447.838198
Perimeter
63317625
Area
1.9288895462926E+14
Altitude
18278223.919099
Surface area
1.9288895462926E+14
Volume
1.1080104002014E+21
Height
9949404.8902504