21031243 is an odd 8-digits composite number following 21031242
and preceding 21031244 . In scientific notation, it is written as 2.1031243 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 20982240 positive integers (up to 21031243) that are relatively prime to 21031243.
21031243 has 4 divisors, whose sum is 21080248
The reverse of 21031243 is 34213012
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty-one thousand two hundred forty-three
Scientific notation
2.1031243 × 10^7
Engineering notation
2.1031243 × 10^6
Prime Factorization
433 × 48571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031243
Product of the distinct prime numbers
The prime factorization of 21031243 is 433 × 48571.
Since it has a total of 2 prime factors.
9 , 3 , 90 , 16 , 832 , 735 , 4660 , 3083 , 2181 , 46677 , 883117 , 588005 , 1467469 , 789906 , 23454096 , 3737637 , 241039321 , 552438076 , 3911171389 , 332252335
n×2
42062486
n×3
63093729
n×4
84124972
n×5
105156215
n÷2
10515621.5
n÷3
7010414.3333333
n÷3
5257810.75
n÷5
4206248.6
n2
442313182125049
n3
9.3023960153752E+21
n4
1.9564095108159E+29
n5
4.114572382948E+36
2 √n
4585.983318766
3 √n
276.02917058483
4 √n
67.719888649982
5 √n
29.145599195204
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
-21031242
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 21031243 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031243) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110100101001011
3
Ternary
1110120111102221
4
Quaternary
1100032211023
5
Quinary
20340444433
6
Senary
2030434511
8
Octal
120164513
10
Decimal
21031243
12
Duodecimal
7062a37
16
Hexadecimal
140e94b
20
Vigesimal
6b8i23
36
Base36
cirt7
md5
c9f5627b3fe37191cb240df8f2f97206
sha1
3a5678129ecc807429182bd843022046a2ff60f5
sha256
631abfad5192b53f042bf1e3876e2ccc95ed9123b72eba9ee238ccc9744c0e7e
sha512
8837d933c2e7b6842b5e5bc4789d758ac3dcaa54fff766207c9d9e328f886412a9b865e83d057c05180e8c41a930632a5b5ab3ade0d515559c597252b6263719
ripemd-160
43ad4a1d153fd7dab6d50c4cec01e53168bdcb71
Diameter
42062486
Circumference
132143197.00932
Area
1.38956784355E+15
Volume
3.8965785310247E+22
Surface area
5.5582713741999E+15
Circumference
132143197.00932
Perimeter
84124972
Area
442313182125049
Diagonal
29742669.084164
Surface area
2653879092750294
Volume
9.3023960153752E+21
Space diagonal
36427181.422327
Perimeter
63093729
Area
1.9152722607451E+14
Altitude
18213590.711164
Surface area
1.9152722607451E+14
Volume
1.0962978839591E+21
Height
9914223.0280547