20178986 is an even 8-digits composite number following 20178985
and preceding 20178987 . In scientific notation, it is written as 2.0178986 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 9777600 positive integers (up to 20178986) that are relatively prime to 20178986.
20178986 has 16 divisors, whose sum is 31210920
The reverse of 20178986 is 68987102
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million one hundred seventy-eight thousand nine hundred eighty-six
Scientific notation
2.0178986 × 10^7
Engineering notation
2.0178986 × 10^6
Prime Factorization
2 × 37 × 389 × 701
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20178986
Product of the distinct prime numbers
The prime factorization of 20178986 is 2 × 37 × 389 × 701.
Since it has a total of 4 prime factors.
1 , 10 , 71 , 98 , 199 , 525 , 2835 , 5340 , 71374 , 68895 , 62698 , 831301 , 7610197 , 3340739 , 42779274 , 44950348 , 9275236 , 341325130 , 6972870147 , 2976713865
n×2
40357972
n×3
60536958
n×4
80715944
n×5
100894930
n÷2
10089493
n÷3
6726328.6666667
n÷3
5044746.5
n÷5
4035797.2
n2
407191475988196
n3
8.2167110932851E+21
n4
1.6580489811745E+29
n5
3.3457747178434E+36
2 √n
4492.1026257199
3 √n
272.24909598793
4 √n
67.023149923888
5 √n
28.905458848462
1 , 2 , 37 , 74 , 389 , 701 , 778 , 1402 , 14393 , 25937 , 28786 , 51874 , 272689 , 545378 , 10089493 , 20178986
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
-20178985
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 20178986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20178986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110100000101010
3
Ternary
1101222012100212
4
Quaternary
1030332200222
5
Quinary
20131211421
6
Senary
2000301122
8
Octal
114764052
10
Decimal
20178986
12
Duodecimal
69117a2
16
Hexadecimal
133e82a
20
Vigesimal
662796
36
Base36
c0i7e
md5
4d2ecc329fe6b6942d0db928d7f2ea65
sha1
2a64e16ed337918d1300fcc7ebd0e18c135f0386
sha256
11ece7e77d304dc492941536245c805c343bf37424fb06d42b70c50aa7bd1d10
sha512
a59313e2a8b24bb368345e5ab314e108544b82e7ba4cf008736a4c9d8d8f67a06d6d8af81c471682431cacd4b6e2b63874a16eeecf7f817b00b5cd1d29b49d89
ripemd-160
3e6eed2df9b39cb0dee47e03d5924f7812e2f0f6
Diameter
40357972
Circumference
126788308.34898
Area
1.2792297495689E+15
Volume
3.4418078943112E+22
Surface area
5.1169189982756E+15
Circumference
126788308.34898
Perimeter
80715944
Area
407191475988196
Diagonal
28537395.676137
Surface area
2443148855929176
Volume
8.2167110932851E+21
Space diagonal
34951028.997221
Perimeter
60536958
Area
1.7631908120513E+14
Altitude
17475514.498611
Surface area
1.7631908120513E+14
Volume
9.6834868885211E+20
Height
9512465.2253789