19986861 is an odd 8-digits composite number following 19986860
and preceding 19986862 . In scientific notation, it is written as 1.9986861 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 13324572 positive integers (up to 19986861) that are relatively prime to 19986861.
19986861 has 4 divisors, whose sum is 26649152
The reverse of 19986861 is 16868991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
nineteen million nine hundred eighty-six thousand eight hundred sixty-one
Scientific notation
1.9986861 × 10^7
Engineering notation
1.9986861 × 10^6
Prime Factorization
3 × 6662287
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19986861
Product of the distinct prime numbers
The prime factorization of 19986861 is 3 × 6662287.
Since it has a total of 2 prime factors.
7 , 7 , 3 , 53 , 90 , 741 , 7062 , 6238 , 22508 , 17188 , 114408 , 617295 , 2879338 , 9148533 , 23967868 , 62222289 , 70296772 , 938897297 , 1840874550 , 6704552456
n×2
39973722
n×3
59960583
n×4
79947444
n×5
99934305
n÷2
9993430.5
n÷3
6662287
n÷3
4996715.25
n÷5
3997372.2
n2
399474612633321
n3
7.984243555731E+21
n4
1.5957996613854E+29
n5
3.1895026015957E+36
2 √n
4470.6667288001
3 √n
271.38230741633
4 √n
66.863044567235
5 √n
28.850205994706
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
-19986860
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 19986861 can be divided by 4 positive divisors.
The sum of these divisors (counting 19986861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001111100110101101
3
Ternary
1101121102211010
4
Quaternary
1030033212231
5
Quinary
20104034421
6
Senary
1552215433
8
Octal
114174655
10
Decimal
19986861
12
Duodecimal
683a579
16
Hexadecimal
130f9ad
20
Vigesimal
64i731
36
Base36
bwdyl
md5
821c444e8a63a2b86b1b72e4c4d582c6
sha1
fb78c47bc4b839e97a5e436685bd8c54a1c54740
sha256
9a9a43ba223ae8b2e8b086ad2619e3da27f24d46d96785ef5640371116576a35
sha512
82823c4c05c0c649681cf0243af96aa471355b3da771b5c60bfd731617640806d290126c7f3132d73ddd274bdb74bca8abe95ec9b2f729c65867a051f1770173
ripemd-160
498f59c8b2109344cec9e8ad056ffd005b019c6d
Diameter
39973722
Circumference
125581151.37184
Area
1.2549865083445E+15
Volume
3.3444321198875E+22
Surface area
5.0199460333779E+15
Circumference
125581151.37184
Perimeter
79947444
Area
399474612633321
Diagonal
28265689.895466
Surface area
2396847675799926
Volume
7.984243555731E+21
Space diagonal
34618258.735817
Perimeter
59960583
Area
1.729775813537E+14
Altitude
17309129.367908
Surface area
1.729775813537E+14
Volume
9.4095212681707E+20
Height
9421896.631822