20197986 is an even 8-digits composite number following 20197985
and preceding 20197987 . In scientific notation, it is written as 2.0197986 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 6725264 positive integers (up to 20197986) that are relatively prime to 20197986.
20197986 has 16 divisors, whose sum is 40440384
The reverse of 20197986 is 68979102
Previous prime number is 2087
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million one hundred ninety-seven thousand nine hundred eighty-six
Scientific notation
2.0197986 × 10^7
Engineering notation
2.0197986 × 10^6
Prime Factorization
2 × 3 × 2087 × 1613
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20197986
Product of the distinct prime numbers
The prime factorization of 20197986 is 2 × 3 × 2087 × 1613.
Since it has a total of 4 prime factors.
4 , 5 , 22 , 99 , 160 , 800 , 5406 , 8763 , 51985 , 82167 , 528745 , 959275 , 7554454 , 9494695 , 29504730 , 50460352 , 985118313 , 94154265 , 529302739 , 1280681920
n×2
40395972
n×3
60593958
n×4
80791944
n×5
100989930
n÷2
10098993
n÷3
6732662
n÷3
5049496.5
n÷5
4039597.2
n2
407958638456196
n3
8.2399428681173E+21
n4
1.6643025069103E+29
n5
3.361555873434E+36
2 √n
4494.2169507045
3 √n
272.33451670183
4 √n
67.038921163042
5 √n
28.910900122753
1 , 2 , 3 , 6 , 1613 , 2087 , 3226 , 4174 , 4839 , 6261 , 9678 , 12522 , 3366331 , 6732662 , 10098993 , 20197986
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
-20197985
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 20197986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20197986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000011001001100010
3
Ternary
1102000011102120
4
Quaternary
1031003021202
5
Quinary
20132313421
6
Senary
2000525110
8
Octal
115031142
10
Decimal
20197986
12
Duodecimal
6920796
16
Hexadecimal
1343262
20
Vigesimal
664ej6
36
Base36
c0wv6
md5
3a9229e8dd6f2a71ec5e4eda00a96810
sha1
e6492ce84e935b7b8e46af48f6e6ce714297048f
sha256
51615dcf7a2a46020b0ff92c61ad8248ea8de3d599167491421114e2e1a9f4e8
sha512
914128bafed1e67f18b0b0092cda127ae5e7997968426291c4c65c66209e30a4255d2783e31e9985f49183f275b4dfcdab83766f67f0fc52b4aec6878116ed7e
ripemd-160
b157cde647f8249c2360a1c70b2b3acbc63f161e
Diameter
40395972
Circumference
126907688.86982
Area
1.2816398615425E+15
Volume
3.4515391973969E+22
Surface area
5.1265594461699E+15
Circumference
126907688.86982
Perimeter
80791944
Area
407958638456196
Diagonal
28564265.733822
Surface area
2447751830737176
Volume
8.2399428681173E+21
Space diagonal
34983937.962565
Perimeter
60593958
Area
1.7665127229819E+14
Altitude
17491968.981282
Surface area
1.7665127229819E+14
Volume
9.7108657977258E+20
Height
9521421.911274