1998191191 is an odd 10-digits composite number following 1998191190
and preceding 1998191192 . In scientific notation, it is written as 1.998191191 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 1986981888 positive integers (up to 1998191191) that are relatively prime to 1998191191.
1998191191 has 8 divisors, whose sum is 2009427840
The reverse of 1998191191 is 1911918991
Previous prime number is 607
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety-eight million one hundred ninety-one thousand one hundred ninety-one
Scientific notation
1.998191191 × 10^9
Engineering notation
1.998191191 × 10^9
Prime Factorization
257 × 607 × 12809
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1998191191 Product of the distinct prime numbers
The prime factorization of 1998191191 is 257 × 607 × 12809.
Since it has a total of 3 prime factors.
7 , 8 , 27 , 80 , 416 , 766 , 100 , 4124 , 35031 , 16227 , 586726 , 621946 , 1111027 , 1900409 , 35402632 , 52573497 , 16807682 , 518079234 , 9965980084 , 953402057
n×2
3996382382
n×3
5994573573
n×4
7992764764
n×5
9990955955
n÷2
999095595.5
n÷3
666063730.33333
n÷3
499547797.75
n÷5
399638238.2
n2
3992768035789998481
n3
7.9783139168219E+27
n4
1.5942196587626E+37
n5
3.1855556786585E+46
2 √n44701.13187605
3 √n1259.5411092428
4 √n211.42642189672
5 √n72.464851742754
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
-1998191190 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 1998191191 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998191191) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111000110011111101001010111
3
Ternary
12011020221122000011
4
Quaternary
1313012133221113
5
Quinary
13043014104231
6
Senary
530140101051
8
Octal
16706375127
10
Decimal
1998191191
12
Duodecimal
479234787
16
Hexadecimal
7719fa57
20
Vigesimal
1b48dhjb
36
Base36
x1o66v
md5
7adfdc3b8dd2e8cf09bc1c6d52de4d2e
sha1
25966788988139bb071b845ecc634671d4d34cf9
sha256
3d853bcb94ebb663b8b832183bbb0a5b18e7c5e61239f021b880b9d1d751c975
sha512
82106b6568abf8f77aef29479ad9882a1a462c829515b9574abbfc85c2d7667374bb764d397daffadd8393d6c7a7abf7cd1ff6aa61b8b1609fb413a6e123a58e
ripemd-160
4833cdadcd62eaa4b55e0671b11e0e535ecfc3c0
Diameter
3996382382
Circumference
12555005532.227
Area
1.2543650728726E+19
Volume
3.3419483185495E+28
Surface area
5.0174602914904E+19
Circumference
12555005532.227
Perimeter
7992764764
Area
3992768035789998481
Diagonal
2825869082.5266
Surface area
2.395660821474E+19
Volume
7.9783139168219E+27
Space diagonal
3460968666.0486
Perimeter
5994573573
Area
1.7289192752063E+18
Altitude
1730484333.0243
Surface area
1.7289192752063E+18
Volume
9.4025331216997E+26
Height
941956360.84222