21031242 is an even 8-digits composite number following 21031241
and preceding 21031243 . In scientific notation, it is written as 2.1031242 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 7010412 positive integers (up to 21031242) that are relatively prime to 21031242.
21031242 has 8 divisors, whose sum is 42062496
The reverse of 21031242 is 24213012
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million thirty-one thousand two hundred forty-two
Scientific notation
2.1031242 × 10^7
Engineering notation
2.1031242 × 10^6
Prime Factorization
2 × 3 × 3505207
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031242
Product of the distinct prime numbers
The prime factorization of 21031242 is 2 × 3 × 3505207.
Since it has a total of 3 prime factors.
8 , 10 , 4 , 23 , 621 , 713 , 4853 , 9211 , 90585 , 57134 , 162046 , 37819 , 1993038 , 3695693 , 13739702 , 48724852 , 724403023 , 924347209 , 8387722635 , 6511574677
n×2
42062484
n×3
63093726
n×4
84124968
n×5
105156210
n÷2
10515621
n÷3
7010414
n÷3
5257810.5
n÷5
4206248.4
n2
442313140062564
n3
9.3023946884357E+21
n4
1.9564091387201E+29
n5
4.1145714047433E+36
2 √n
4585.9832097381
3 √n
276.02916620993
4 √n
67.719887844991
5 √n
29.14559891804
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
-21031241
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 21031242 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031242) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110100101001010
3
Ternary
1110120111102220
4
Quaternary
1100032211022
5
Quinary
20340444432
6
Senary
2030434510
8
Octal
120164512
10
Decimal
21031242
12
Duodecimal
7062a36
16
Hexadecimal
140e94a
20
Vigesimal
6b8i22
36
Base36
cirt6
md5
a0c6a5dc7004e35d9aa0e9216b17c994
sha1
e1a6946635216927dab35cd7bc913d35d84a472e
sha256
827807d21ed39e5af572a94fc0a006da2f2481b206445c436a52800594bd84fa
sha512
193746713f828d772a0244ce688709184de7f6a7c467710753b58e7f06d43e2699cf09b99dbc63e48938213aa6a5d0e2ff0098995b2fd1422c1d45cef0ec615d
ripemd-160
7c06cd48c31a7fd6b16a4b550088fbd4522f41aa
Diameter
42062484
Circumference
132143190.72614
Area
1.3895677114068E+15
Volume
3.8965779751976E+22
Surface area
5.5582708456271E+15
Circumference
132143190.72614
Perimeter
84124968
Area
442313140062564
Diagonal
29742667.669951
Surface area
2653878840375384
Volume
9.3023946884357E+21
Space diagonal
36427179.690276
Perimeter
63093726
Area
1.9152720786092E+14
Altitude
18213589.845138
Surface area
1.9152720786092E+14
Volume
1.0962977275778E+21
Height
9914222.5566502