19986145 is an odd 8-digits composite number following 19986144
and preceding 19986146 . In scientific notation, it is written as 1.9986145 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 15763440 positive integers (up to 19986145) that are relatively prime to 19986145.
19986145 has 8 divisors, whose sum is 24321600
The reverse of 19986145 is 54168991
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred eighty-six thousand one hundred forty-five
Scientific notation
1.9986145 × 10^7
Engineering notation
1.9986145 × 10^6
Prime Factorization
5 × 71 × 56299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19986145
Product of the distinct prime numbers
The prime factorization of 19986145 is 5 × 71 × 56299.
Since it has a total of 3 prime factors.
3 , 7 , 28 , 24 , 2 , 730 , 956 , 1899 , 98243 , 30319 , 656926 , 519733 , 4569993 , 2010062 , 67155497 , 12755215 , 711595505 , 463275300 , 3182220440 , 7709701187
n×2
39972290
n×3
59958435
n×4
79944580
n×5
99930725
n÷2
9993072.5
n÷3
6662048.3333333
n÷3
4996536.25
n÷5
3997229
n2
399445991961025
n3
7.9833855150019E+21
n4
1.5955710049373E+29
n5
3.1889313462472E+36
2 √n
4470.5866505415
3 √n
271.37906675317
4 √n
66.862445741548
5 √n
28.849999288476
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
-19986144
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 19986145 can be divided by 8 positive divisors.
The sum of these divisors (counting 19986145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001111011011100001
3
Ternary
1101121101211121
4
Quaternary
1030033123201
5
Quinary
20104024040
6
Senary
1552212241
8
Octal
114173341
10
Decimal
19986145
12
Duodecimal
683a081
16
Hexadecimal
130f6e1
20
Vigesimal
64i575
36
Base36
bwdep
md5
ebe6d9ac627926bee197d565da144f09
sha1
49e3adb90399c8214a601fb444c0c7dff8be9c0c
sha256
4eb2e6635d30f7a823d7b86c7dd45f7f9fc8b74a9ba595a052fc9346dd4ce45b
sha512
303ccfa7424611d138cba083df4cbf1e29aae7afe36652c71563f85eb459e8411203ea26e5c93447284fbdef98594741afa780ece3cef4c4d820c77331e80d00
ripemd-160
7e45352b0fc93f1400c86167eda002f750391a28
Diameter
39972290
Circumference
125576652.61116
Area
1.2548965938506E+15
Volume
3.3440727046273E+22
Surface area
5.0195863754026E+15
Circumference
125576652.61116
Perimeter
79944580
Area
399445991961025
Diagonal
28264677.318555
Surface area
2396675951766150
Volume
7.9833855150019E+21
Space diagonal
34617018.587439
Perimeter
59958435
Area
1.7296518823906E+14
Altitude
17308509.293719
Surface area
1.7296518823906E+14
Volume
9.4085100574738E+20
Height
9421559.1061851