21031863 is an odd 8-digits composite number following 21031862
and preceding 21031864 . In scientific notation, it is written as 2.1031863 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14021240 positive integers (up to 21031863) that are relatively prime to 21031863.
21031863 has 4 divisors, whose sum is 28042488
The reverse of 21031863 is 36813012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million thirty-one thousand eight hundred sixty-three
Scientific notation
2.1031863 × 10^7
Engineering notation
2.1031863 × 10^6
Prime Factorization
3 × 7010621
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031863
Product of the distinct prime numbers
The prime factorization of 21031863 is 3 × 7010621.
Since it has a total of 2 prime factors.
10 , 5 , 8 , 8 , 809 , 723 , 4331 , 9016 , 54208 , 11566 , 159928 , 431993 , 9528661 , 7004930 , 51728374 , 59986927 , 684731080 , 337410113 , 3548826747 , 1873264467
n×2
42063726
n×3
63095589
n×4
84127452
n×5
105159315
n÷2
10515931.5
n÷3
7010621
n÷3
5257965.75
n÷5
4206372.6
n2
442339261250769
n3
9.3032187421474E+21
n4
1.9566402204388E+29
n5
4.1151789056558E+36
2 √n
4586.0509155481
3 √n
276.03188300026
4 √n
67.720387739204
5 √n
29.145771035342
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
-21031862
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 21031863 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031863) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110110111
3
Ternary
1110120112021220
4
Quaternary
1100032232313
5
Quinary
20341004423
6
Senary
2030441423
8
Octal
120165667
10
Decimal
21031863
12
Duodecimal
7063273
16
Hexadecimal
140ebb7
20
Vigesimal
6b8jd3
36
Base36
cisaf
md5
c8fab9dce27d9b8861a04077198eadb5
sha1
9bac0b0e939df46ba6031133427c2330482f496a
sha256
30bb629d3fc6ca037758b0082498c4ef196cf4a807b7233011fb0fc205203f36
sha512
a752471e8f11d051395ad944e7b6e6d37d86615429d51137dc7ceb9cd05105dbc6842d6713f703e2c852072af114141db7fe981ac07c717ab79d4e0f7beccc42
ripemd-160
1652af0c08390a1d18b1dc90903751aae052ee89
Diameter
42063726
Circumference
132147092.58421
Area
1.3896497735398E+15
Volume
3.8969231540092E+22
Surface area
5.558599094159E+15
Circumference
132147092.58421
Perimeter
84127452
Area
442339261250769
Diagonal
29743545.896573
Surface area
2654035567504614
Volume
9.3032187421474E+21
Space diagonal
36428255.293828
Perimeter
63095589
Area
1.915385186672E+14
Altitude
18214127.646914
Surface area
1.915385186672E+14
Volume
1.096394843239E+21
Height
9914515.2988576