198981 is an odd 6-digits composite number following 198980
and preceding 198982 . In scientific notation, it is written as 1.98981 × 10^5.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 132648 positive integers (up to 198981) that are relatively prime to 198981.
198981 has 4 divisors, whose sum is 221100
The reverse of 198981 is 189891
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 36
Digital Root 9
Name
one hundred ninety-eight thousand nine hundred eighty-one
Scientific notation
1.98981 × 10^5
Engineering notation
1.98981 × 10^3
Prime Factorization
9 × 22109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
198981
Product of the distinct prime numbers
The prime factorization of 198981 is 9 × 22109.
Since it has a total of 2 prime factors.
8 , 6 , 32 , 21 , 425 , 227 , 5491 , 4595 , 16971 , 70542 , 205200 , 304072 , 1654073 , 474649 , 58806122 , 36589336 , 242350716 , 190080603 , 924998125 , 8020863117
n×2
397962
n×3
596943
n×4
795924
n×5
994905
n÷2
99490.5
n÷3
66327
n÷3
49745.25
n÷5
39796.2
n2
39593438361
n3
7878341958510141
n4
1.5676403612463E+21
n5
3.1193064672115E+26
2 √n
446.07286400318
3 √n
58.38086647234
4 √n
21.120437116764
5 √n
11.475254385275
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
-198980
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 198981 can be divided by 4 positive divisors.
The sum of these divisors (counting 198981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000100101000101
3
Ternary
101002221200
4
Quaternary
300211011
5
Quinary
22331411
6
Senary
4133113
8
Octal
604505
10
Decimal
198981
12
Duodecimal
97199
16
Hexadecimal
30945
20
Vigesimal
14h91
36
Base36
49j9
md5
445a88daebdd23d6bf47c1314cafb66e
sha1
445e795a5bd4078e4c79dd991c089965ec96cb56
sha256
ec12ef83a46b25a269c7d9a839e3007450c708096e14f46785c2a630dada9fa0
sha512
e6e84e104c494f9e8b890fff5ddae90db579cbe4afd7c567142e5ae00ba98e54b2a52bd1f37d55ab948e336455326495288135d4d9e2f5e9de10cc6ad5760e90
ripemd-160
4b6045b7aace8ab0932429c9dea4592d2f8ca3d3
Diameter
397962
Circumference
1250234.4956079
Area
124386455085.28
Volume
3.3000721625765E+16
Surface area
497545820341.11
Circumference
1250234.4956079
Perimeter
795924
Area
39593438361
Diagonal
281401.62885456
Surface area
237560630166
Volume
7878341958510141
Space diagonal
344645.20174086
Perimeter
596943
Area
17144461721.9
Altitude
172322.60087043
Surface area
17144461721.9
Volume
9.2847150389484E+14
Height
93800.54295152