21131645 is an odd 8-digits composite number following 21131644
and preceding 21131646 . In scientific notation, it is written as 2.1131645 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 16878400 positive integers (up to 21131645) that are relatively prime to 21131645.
21131645 has 8 divisors, whose sum is 25398360
The reverse of 21131645 is 54613112
Previous prime number is 701
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred thirty-one thousand six hundred forty-five
Scientific notation
2.1131645 × 10^7
Engineering notation
2.1131645 × 10^6
Prime Factorization
5 × 701 × 6029
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131645
Product of the distinct prime numbers
The prime factorization of 21131645 is 5 × 701 × 6029.
Since it has a total of 3 prime factors.
3 , 10 , 94 , 24 , 265 , 865 , 3885 , 7694 , 32479 , 53265 , 25529 , 556975 , 2179708 , 5448243 , 50599282 , 45753850 , 399539503 , 318280112 , 446093703 , 8270944080
n×2
42263290
n×3
63394935
n×4
84526580
n×5
105658225
n÷2
10565822.5
n÷3
7043881.6666667
n÷3
5282911.25
n÷5
4226329
n2
446546420406025
n3
9.4362604320409E+21
n4
1.9940370557743E+29
n5
4.2137283179469E+36
2 √n
4596.9169015765
3 √n
276.46772281979
4 √n
67.800567118399
5 √n
29.173374105606
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
-21131644
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 21131645 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131645) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000101111101
3
Ternary
1110202121011112
4
Quaternary
1100213011331
5
Quinary
20402203040
6
Senary
2032531405
8
Octal
120470575
10
Decimal
21131645
12
Duodecimal
70b0b65
16
Hexadecimal
142717d
20
Vigesimal
6c1925
36
Base36
ckxa5
md5
86894a1d05c740583e9587e14523e74f
sha1
2050223fc060cd3a65f1c334e9683fc8974b99b1
sha256
73074b150f441870acab14496fd7b4bf72d3f0fc244f8eb70c2315fc1f7cc52d
sha512
076b28dd6747c3d813326277057bfb8bd956f4d60b5097b3a8acd1852330f537b81b4fdeac54e50ae42878dfc0c2bf3af5853646dbe380cc06c739e608e7fc9c
ripemd-160
eb3bc2ae6e6d44f299a34ee8740894b8389da9bb
Diameter
42263290
Circumference
132774041.38053
Area
1.4028669538344E+15
Volume
3.9526515267546E+22
Surface area
5.6114678153376E+15
Circumference
132774041.38053
Perimeter
84526580
Area
446546420406025
Diagonal
29884658.954254
Surface area
2679278522436150
Volume
9.4362604320409E+21
Space diagonal
36601082.787509
Perimeter
63394935
Area
1.9336027202031E+14
Altitude
18300541.393754
Surface area
1.9336027202031E+14
Volume
1.1120739567564E+21
Height
9961552.9847512