1998498981 is an odd 10-digits composite number following 1998498980
and preceding 1998498982 . In scientific notation, it is written as 1.998498981 × 10^9.
The sum of its digits is 66. It has a total of 4 prime factors and 16 positive divisors.
There are 1305621504 positive integers (up to 1998498981) that are relatively prime to 1998498981.
1998498981 has 16 divisors, whose sum is 2718501824
The reverse of 1998498981 is 1898948991
Previous prime number is 193
Is Prime? no Number parity odd Number length 10 Sum of Digits 66 Digital Root 3
Name
one billion nine hundred ninety-eight million four hundred ninety-eight thousand nine hundred eighty-one
Scientific notation
1.998498981 × 10^9
Engineering notation
1.998498981 × 10^9
Prime Factorization
3 × 67 × 193 × 51517
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1998498981 Product of the distinct prime numbers
The prime factorization of 1998498981 is 3 × 67 × 193 × 51517.
Since it has a total of 4 prime factors.
5 , 4 , 92 , 43 , 65 , 729 , 6232 , 1767 , 64552 , 69246 , 960093 , 896074 , 6429590 , 2132544 , 3191165 , 86449907 , 982722698 , 642402328 , 1712479343 , 8505723097
n×2
3996997962
n×3
5995496943
n×4
7993995924
n×5
9992494905
n÷2
999249490.5
n÷3
666166327
n÷3
499624745.25
n÷5
399699796.2
n2
3993998177058038361
n3
7.9820012869663E+27
n4
1.5952021438343E+37
n5
3.1880098589419E+46
2 √n44704.574497472
3 √n1259.6057767708
4 √n211.43456315719
5 √n72.467084019897
1 , 3 , 67 , 193 , 201 , 579 , 12931 , 38793 , 51517 , 154551 , 3451639 , 9942781 , 10354917 , 29828343 , 666166327 , 1998498981
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
-1998498980 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 1998498981 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998498981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000111101010110010100101
3
Ternary
12011021112021012210
4
Quaternary
1313013222302211
5
Quinary
13043103431411
6
Senary
530150434033
8
Octal
16707526245
10
Decimal
1998498981
12
Duodecimal
479362919
16
Hexadecimal
771eaca5
20
Vigesimal
1b4ac791
36
Base36
x1urol
md5
3f2dad2e7106d020580121e196a40a76
sha1
f9f7a522b1038941580788554af87eafd88593cf
sha256
aa22c54f773ff370f0ac7953eadbdbcd89953b8de4aaa48c9a43aa811890aa86
sha512
58487e1a9e28d76248731877914ab90d575fbbc0bcd20acf2673dba7c5f0479337bc7c09f04bee7ab6a761b8e500f2d5df6a1e429fce1427cfbdc680837fbf6d
ripemd-160
cfe9ca6075f77f199f4acf9890dfb7823cb64846
Diameter
3996997962
Circumference
12556939433.833
Area
1.2547515331497E+19
Volume
3.3434928805437E+28
Surface area
5.0190061325986E+19
Circumference
12556939433.833
Perimeter
7993995924
Area
3993998177058038361
Diagonal
2826304363.319
Surface area
2.3963989062348E+19
Volume
7.9820012869663E+27
Space diagonal
3461501773.9666
Perimeter
5995496943
Area
1.7294519420005E+18
Altitude
1730750886.9833
Surface area
1.7294519420005E+18
Volume
9.4068787290894E+26
Height
942101454.43967