21031823 is an odd 8-digits composite number following 21031822
and preceding 21031824 . In scientific notation, it is written as 2.1031823 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 21021120 positive integers (up to 21031823) that are relatively prime to 21031823.
21031823 has 4 divisors, whose sum is 21042528
The reverse of 21031823 is 32813012
Previous prime number is 2593
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand eight hundred twenty-three
Scientific notation
2.1031823 × 10^7
Engineering notation
2.1031823 × 10^6
Prime Factorization
2593 × 8111
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031823
Product of the distinct prime numbers
The prime factorization of 21031823 is 2593 × 8111.
Since it has a total of 2 prime factors.
1 , 6 , 82 , 5 , 605 , 46 , 4791 , 9386 , 84390 , 80379 , 113903 , 264903 , 6233091 , 7842817 , 63106682 , 86551668 , 962635669 , 299987065 , 7352602678 , 9431787602
n×2
42063646
n×3
63095469
n×4
84127292
n×5
105159115
n÷2
10515911.5
n÷3
7010607.6666667
n÷3
5257955.75
n÷5
4206364.6
n2
442337578703329
n3
9.303165661537E+21
n4
1.9566253353312E+29
n5
4.1151397730002E+36
2 √n
4586.0465544955
3 √n
276.03170800733
4 √n
67.720355540232
5 √n
29.145759949003
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
-21031822
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 21031823 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031823) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110001111
3
Ternary
1110120112020102
4
Quaternary
1100032232033
5
Quinary
20341004243
6
Senary
2030441315
8
Octal
120165617
10
Decimal
21031823
12
Duodecimal
706323b
16
Hexadecimal
140eb8f
20
Vigesimal
6b8jb3
36
Base36
cis9b
md5
85cff257fcbd5308cf6f1287708d2c05
sha1
33283660f248ebb48c80729ff63c4d138dc2d83f
sha256
c755caca7fb1a53a3446d8637b9e611c88329c87f986ef23b409051a2ddeed36
sha512
24590bc2c818b02adad81549b3e6ac314e0397c1ef1f789e1dfb538679fb85534f9588c45a149b031f21dd3659141b794015d1bfae79ec7458b505b5856dc01b
ripemd-160
ae6aaa48de5cf4fc9775953f09973b13ec2e1001
Diameter
42063646
Circumference
132146841.2568
Area
1.3896444876611E+15
Volume
3.8969009196551E+22
Surface area
5.5585779506443E+15
Circumference
132146841.2568
Perimeter
84127292
Area
442337578703329
Diagonal
29743489.32803
Surface area
2654025472219974
Volume
9.303165661537E+21
Space diagonal
36428186.011796
Perimeter
63095469
Area
1.9153779010279E+14
Altitude
18214093.005898
Surface area
1.9153779010279E+14
Volume
1.0963885876291E+21
Height
9914496.4426768