20213145 is an odd 8-digits composite number following 20213144
and preceding 20213146 . In scientific notation, it is written as 2.0213145 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 10402560 positive integers (up to 20213145) that are relatively prime to 20213145.
20213145 has 16 divisors, whose sum is 23763600
The reverse of 20213145 is 54131202
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred thirteen thousand one hundred forty-five
Scientific notation
2.0213145 × 10^7
Engineering notation
2.0213145 × 10^6
Prime Factorization
45 × 9 × 29 × 1721
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20213145
Product of the distinct prime numbers
The prime factorization of 20213145 is 45 × 9 × 29 × 1721.
Since it has a total of 4 prime factors.
5 , 2 , 51 , 4 , 728 , 637 , 584 , 9730 , 38432 , 72747 , 142551 , 640237 , 4077883 , 47971 , 12199084 , 54460137 , 493056861 , 98536997 , 7003757897 , 9794827313
n×2
40426290
n×3
60639435
n×4
80852580
n×5
101065725
n÷2
10106572.5
n÷3
6737715
n÷3
5053286.25
n÷5
4042629
n2
408571230791025
n3
8.2585095308075E+21
n4
1.6693045063009E+29
n5
3.3741894035014E+36
2 √n
4495.9031350775
3 √n
272.40263053215
4 √n
67.051496143468
5 √n
28.915238464455
1 , 9 , 29 , 45 , 261 , 405 , 1305 , 1721 , 11745 , 15489 , 49909 , 77445 , 449181 , 697005 , 2245905 , 20213145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20213144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20213145 can be divided by 16 positive divisors.
The sum of these divisors (counting 20213145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110110110011001
3
Ternary
1102000221020000
4
Quaternary
1031012312121
5
Quinary
20133310040
6
Senary
2001123213
8
Octal
115066631
10
Decimal
20213145
12
Duodecimal
6929509
16
Hexadecimal
1346d99
20
Vigesimal
666ch5
36
Base36
c18k9
md5
6435f6899c665f5ac4765151e14c36ab
sha1
78faca9f44b011772f3260edd2122607e2142572
sha256
c7f067d015289b088ad0ca212347c163bba67f9c7bc6772ad299145de082fe2d
sha512
9a1eb4e4580dc5d28bf7f1ed05822e641f07f8e1a5678fc6daa2dd37321c006d1da0447ce0f5040ba27fbff7d69d3ea320eafce8f582a0bd0f1bb4556fbf647f
ripemd-160
4b3defbf37b49a9def6a4ecdc6234362ca461e47
Diameter
40426290
Circumference
127002935.67589
Area
1.2835643771212E+15
Volume
3.4593163828781E+22
Surface area
5.1342575084849E+15
Circumference
127002935.67589
Perimeter
80852580
Area
408571230791025
Diagonal
28585703.797214
Surface area
2451427384746150
Volume
8.2585095308075E+21
Space diagonal
35010194.120757
Perimeter
60639435
Area
1.7691653256025E+14
Altitude
17505097.060378
Surface area
1.7691653256025E+14
Volume
9.7327468195461E+20
Height
9528567.9324046