21020791 is an odd 8-digits composite number following 21020790
and preceding 21020792 . In scientific notation, it is written as 2.1020791 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 18993720 positive integers (up to 21020791) that are relatively prime to 21020791.
21020791 has 8 divisors, whose sum is 23071104
The reverse of 21020791 is 19702012
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million twenty thousand seven hundred ninety-one
Scientific notation
2.1020791 × 10^7
Engineering notation
2.1020791 × 10^6
Prime Factorization
11 × 167 × 11443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21020791
Product of the distinct prime numbers
The prime factorization of 21020791 is 11 × 167 × 11443.
Since it has a total of 3 prime factors.
1 , 7 , 42 , 60 , 548 , 320 , 5258 , 7982 , 90815 , 34325 , 32262 , 780643 , 7847546 , 1489034 , 1882328 , 98348742 , 816771674 , 46695387 , 4181415917 , 1915096130
n×2
42041582
n×3
63062373
n×4
84083164
n×5
105103955
n÷2
10510395.5
n÷3
7006930.3333333
n÷3
5255197.75
n÷5
4204158.2
n2
441873654265681
n3
9.2885337347251E+21
n4
1.9525232633411E+29
n5
4.1043583441331E+36
2 √n
4584.8436178347
3 √n
275.98343648412
4 √n
67.711473310177
5 √n
29.142701692872
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
-21020790
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 21020791 can be divided by 8 positive divisors.
The sum of these divisors (counting 21020791) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001100000001110111
3
Ternary
1110112222002211
4
Quaternary
1100030001313
5
Quinary
20340131131
6
Senary
2030314251
8
Octal
120140167
10
Decimal
21020791
12
Duodecimal
7058987
16
Hexadecimal
140c077
20
Vigesimal
6b7bjb
36
Base36
cijqv
md5
ce2805ba542d4b5744c71c43859b17c7
sha1
a525f25fadfb815976117205aa089d3ada7bb569
sha256
3b6ffc6d4acf62e4e9ee9759514f04ef7197c96fdaabeb89bac11fdeba3528b6
sha512
7d28e64493d1d7f922c992622df60eb86e202b07c3fa24cf8644323b7b2661f31ce0de87000e863178c52d52aab93dfa85d9a066bb5bbb38c819f34ff2e7f18e
ripemd-160
456e2ec8f3f9efc6f5fbcfebe73212a6310fc885
Diameter
42041582
Circumference
132077525.15649
Area
1.3881870260559E+15
Volume
3.8907719124845E+22
Surface area
5.5527481042238E+15
Circumference
132077525.15649
Perimeter
84083164
Area
441873654265681
Diagonal
29727887.72401
Surface area
2651241925594086
Volume
9.2885337347251E+21
Space diagonal
36409078.027287
Perimeter
63062373
Area
1.9133690492857E+14
Altitude
18204539.013643
Surface area
1.9133690492857E+14
Volume
1.0946641985174E+21
Height
9909295.9080034