21031620 is an even 8-digits composite number following 21031619
and preceding 21031621 . In scientific notation, it is written as 2.1031620 × 10^7.
The sum of its digits is 15. It has a total of 5 prime factors and 24 positive divisors.
There are 5528320 positive integers (up to 21031620) that are relatively prime to 21031620.
21031620 has 24 divisors, whose sum is 39820032
The reverse of 21031620 is 02613012
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million thirty-one thousand six hundred twenty
Scientific notation
2.1031620 × 10^7
Engineering notation
2.1031620 × 10^6
Prime Factorization
2 × 2 × 15 × 71 × 4937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10515810
Product of the distinct prime numbers
The prime factorization of 21031620 is 2 × 2 × 15 × 71 × 4937.
Since it has a total of 5 prime factors.
5 , 2 , 32 , 45 , 38 , 868 , 100 , 9291 , 70704 , 72378 , 704654 , 237366 , 6216738 , 6886178 , 35310875 , 86323641 , 152554942 , 53829373 , 3041335041 , 48600051
n×2
42063240
n×3
63094860
n×4
84126480
n×5
105158100
n÷2
10515810
n÷3
7010540
n÷3
5257905
n÷5
4206324
n2
442329039824400
n3
9.3028962805516E+21
n4
1.9565497947198E+29
n5
4.1149411793624E+36
2 √n
4586.0244220894
3 √n
276.03081991476
4 √n
67.720192129743
5 √n
29.145703685577
1 , 2 , 4 , 15 , 30 , 60 , 71 , 142 , 284 , 1065 , 2130 , 4260 , 4937 , 9874 , 19748 , 74055 , 148110 , 296220 , 350527 , 701054 , 1402108 , 5257905 , 10515810 , 21031620
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031620 can be divided by 24 positive divisors.
The sum of these divisors (counting 21031620) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000001110101011000100
3
Ternary
1110120111221220
4
Quaternary
1100032223010
5
Quinary
20341002440
6
Senary
2030440340
8
Octal
120165304
10
Decimal
21031620
12
Duodecimal
70630b0
16
Hexadecimal
140eac4
20
Vigesimal
6b8j10
36
Base36
cis3o
md5
10243aa5dfa352966eb05a0d7e8033f5
sha1
caac7afc6680a236529f6ab645aeda94ffb46abc
sha256
af665a29d8c8982104d656b61a28dfb78c7a7d320b7056fa0322d2237f263e2e
sha512
51be19f75183248a186eb437d12b42953be55cf8be27b56cc6b8602cbcf7722dcb33b88d86e3c88a85bc815f9a8ae4fa886a37d1d1e621961807543793a41d75
ripemd-160
a1762f53cf6aa6519186478fe232d4707088fe63
Diameter
42063240
Circumference
132145565.77018
Area
1.3896176619818E+15
Volume
3.8967880816118E+22
Surface area
5.558470647927E+15
Circumference
132145565.77018
Perimeter
84126480
Area
442329039824400
Diagonal
29743202.242677
Surface area
2653974238946400
Volume
9.3028962805516E+21
Space diagonal
36427834.405482
Perimeter
63094860
Area
1.9153409265975E+14
Altitude
18213917.202741
Surface area
1.9153409265975E+14
Volume
1.0963568407755E+21
Height
9914400.7475591