20201645 is an odd 8-digits composite number following 20201644
and preceding 20201646 . In scientific notation, it is written as 2.0201645 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 16134160 positive integers (up to 20201645) that are relatively prime to 20201645.
20201645 has 8 divisors, whose sum is 24282720
The reverse of 20201645 is 54610202
Previous prime number is 659
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million two hundred one thousand six hundred forty-five
Scientific notation
2.0201645 × 10^7
Engineering notation
2.0201645 × 10^6
Prime Factorization
5 × 659 × 6131
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20201645
Product of the distinct prime numbers
The prime factorization of 20201645 is 5 × 659 × 6131.
Since it has a total of 3 prime factors.
6 , 5 , 35 , 67 , 616 , 960 , 1926 , 4759 , 61202 , 77837 , 284827 , 563068 , 3343222 , 4302913 , 83266374 , 92493631 , 720265858 , 953295012 , 4778269309 , 2919247407
n×2
40403290
n×3
60604935
n×4
80806580
n×5
101008225
n÷2
10100822.5
n÷3
6733881.6666667
n÷3
5050411.25
n÷5
4040329
n2
408106460706025
n3
8.2444218413896E+21
n4
1.6655088327E+29
n5
3.3646018182569E+36
2 √n
4494.6240109713
3 √n
272.3509607808
4 √n
67.041957093833
5 √n
28.911947527369
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
-20201644
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 20201645 can be divided by 8 positive divisors.
The sum of these divisors (counting 20201645) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000100000010101101
3
Ternary
1102000100110002
4
Quaternary
1031010002231
5
Quinary
20132423040
6
Senary
2000554045
8
Octal
115040255
10
Decimal
20201645
12
Duodecimal
6922925
16
Hexadecimal
13440ad
20
Vigesimal
665425
36
Base36
c0zot
md5
8f1df031064086744d25733b3c73464e
sha1
cdac0f226469a5d35e603b62aa7f28997c9e1c08
sha256
fa0ae2f60abe6531a72a750fe06b038be81ffcf06ae0506d0a287969fbe2b9f5
sha512
e579995bec3896ec49757a9b8f0e63a76e8b989f1059f656b47b919c22d51eb441e2a3cd7ce12a6eea9507ad3274453ec4f90ca035078544722cf7406fbc060f
ripemd-160
f27501a52f5aca7ca066f664a9724626a0adcea5
Diameter
40403290
Circumference
126930679.04486
Area
1.2821042588366E+15
Volume
3.453415345334E+22
Surface area
5.1284170353463E+15
Circumference
126930679.04486
Perimeter
80806580
Area
408106460706025
Diagonal
28569440.341247
Surface area
2448638764236150
Volume
8.2444218413896E+21
Space diagonal
34990275.53647
Perimeter
60604935
Area
1.7671528120999E+14
Altitude
17495137.768235
Surface area
1.7671528120999E+14
Volume
9.7161443183484E+20
Height
9523146.7804155