20197985 is an odd 8-digits composite number following 20197984
and preceding 20197986 . In scientific notation, it is written as 2.0197985 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 16158384 positive integers (up to 20197985) that are relatively prime to 20197985.
20197985 has 4 divisors, whose sum is 24237588
The reverse of 20197985 is 58979102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million one hundred ninety-seven thousand nine hundred eighty-five
Scientific notation
2.0197985 × 10^7
Engineering notation
2.0197985 × 10^6
Prime Factorization
5 × 4039597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20197985
Product of the distinct prime numbers
The prime factorization of 20197985 is 5 × 4039597.
Since it has a total of 2 prime factors.
2 , 7 , 26 , 24 , 972 , 211 , 7951 , 2947 , 4258 , 14111 , 812626 , 186114 , 6113380 , 5361857 , 97375735 , 75925439 , 56868025 , 639926427 , 6079570344 , 4955272094
n×2
40395970
n×3
60593955
n×4
80791940
n×5
100989925
n÷2
10098992.5
n÷3
6732661.6666667
n÷3
5049496.25
n÷5
4039597
n2
407958598060225
n3
8.2399416442415E+21
n4
1.6643021773126E+29
n5
3.3615550412828E+36
2 √n
4494.2168394505
3 √n
272.33451220742
4 √n
67.038920333269
5 √n
28.910899836478
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
-20197984
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 20197985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20197985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011001001100001
3
Ternary
1102000011102112
4
Quaternary
1031003021201
5
Quinary
20132313420
6
Senary
2000525105
8
Octal
115031141
10
Decimal
20197985
12
Duodecimal
6920795
16
Hexadecimal
1343261
20
Vigesimal
664ej5
36
Base36
c0wv5
md5
6651ffd99ac18050068cb587a8400110
sha1
5bc0192ea39ded7ae6c4d61bcaa85943327c9a9e
sha256
88d0e17b6c67a1d9da3cdf1071365ef13578e84c68aab3cb405bb764ff31a90e
sha512
c41815ea9cf129b0e84ba6cbcb81c82e79cd48eb37a030529c44f4f7781f198293c7abbbd1e988e9aa7b0d6a88cb51f9562962e28c35b37d87d55ea7e74ebb27
ripemd-160
0b0875d2317ae2f1bef4970e0134ea43882b57c6
Diameter
40395970
Circumference
126907682.58663
Area
1.2816397346348E+15
Volume
3.451538684741E+22
Surface area
5.1265589385392E+15
Circumference
126907682.58663
Perimeter
80791940
Area
407958598060225
Diagonal
28564264.319608
Surface area
2447751588361350
Volume
8.2399416442415E+21
Space diagonal
34983936.230514
Perimeter
60593955
Area
1.7665125480622E+14
Altitude
17491968.115257
Surface area
1.7665125480622E+14
Volume
9.7108643553743E+20
Height
9521421.4398694