198661805 is an odd 9-digits composite number following 198661804
and preceding 198661806 . In scientific notation, it is written as 1.98661805 × 10^8.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 158929440 positive integers (up to 198661805) that are relatively prime to 198661805.
198661805 has 4 divisors, whose sum is 238394172
The reverse of 198661805 is 508166891
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
one hundred ninety-eight million six hundred sixty-one thousand eight hundred five
Scientific notation
1.98661805 × 10^8
Engineering notation
1.98661805 × 10^6
Prime Factorization
5 × 39732361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
198661805
Product of the distinct prime numbers
The prime factorization of 198661805 is 5 × 39732361.
Since it has a total of 2 prime factors.
4 , 9 , 20 , 27 , 754 , 688 , 3077 , 3718 , 88435 , 27474 , 254074 , 524174 , 6410935 , 3840849 , 32257030 , 33151160 , 172717667 , 405455401 , 4274999029 , 5933617330
n×2
397323610
n×3
595985415
n×4
794647220
n×5
993309025
n÷2
99330902.5
n÷3
66220601.666667
n÷3
49665451.25
n÷5
39732361
n2
39466512765858025
n3
7.8404886631209E+24
n4
1.5576056298976E+33
n5
3.0943674591363E+41
2 √n
14094.743878482
3 √n
583.49632579098
4 √n
118.72128654324
5 √n
45.669144413456
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
-198661804
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 198661805 can be divided by 4 positive divisors.
The sum of these divisors (counting 198661805) is 1, the average is 0.25.
Base
System
Value
2
Binary
1011110101110101011010101101
3
Ternary
111211211001202122
4
Quaternary
23311311122231
5
Quinary
401324134210
6
Senary
31414002325
8
Octal
1365653255
10
Decimal
198661805
12
Duodecimal
566463a5
16
Hexadecimal
bd756ad
20
Vigesimal
321cea5
36
Base36
3aa0fh
md5
fec592d25e2b233464938c0249de369d
sha1
3ff7fef61aaf4fc80241260f5fdd997b74cb0aed
sha256
f5d28770f9e672c497bd387af97cb7ac5b3018ae18ba89cc7ee93b29ec84065b
sha512
6dee2a4266c41a63bd2edad52c2e764d2e1d57e6c435e4ba4ff9b2fbd27ce869e7b0bd38489bcc4294bd354ec03c9eeedd153fc6b68ea4e214eb0f129e2a71f8
ripemd-160
59ab277194bfe1e8d995ce323b33cf9ed2a43738
Diameter
397323610
Circumference
1248228934.2738
Area
1.2398770656803E+17
Volume
3.284216211282E+25
Surface area
4.9595082627211E+17
Circumference
1248228934.2738
Perimeter
794647220
Area
39466512765858025
Diagonal
280950218.95652
Surface area
236799076595148150
Volume
7.8404886631209E+24
Space diagonal
344092339.78334
Perimeter
595985415
Area
1.7089501327008E+16
Altitude
172046169.89167
Surface area
1.7089501327008E+16
Volume
9.2401045025151E+23
Height
93650072.985506