198188891 is an odd 9-digits composite number following 198188890
and preceding 198188892 . In scientific notation, it is written as 1.98188891 × 10^8.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 197417472 positive integers (up to 198188891) that are relatively prime to 198188891.
198188891 has 4 divisors, whose sum is 198960312
The reverse of 198188891 is 198881891
Previous prime number is 257
Is Prime? no Number parity odd Number length 9 Sum of Digits 53 Digital Root 8
Name
one hundred ninety-eight million one hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
1.98188891 × 10^8
Engineering notation
1.98188891 × 10^6
Prime Factorization
257 × 771163
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
198188891 Product of the distinct prime numbers
The prime factorization of 198188891 is 257 × 771163.
Since it has a total of 2 prime factors.
6 , 3 , 63 , 16 , 112 , 267 , 9218 , 3560 , 18652 , 16778 , 929847 , 780257 , 6046587 , 7362698 , 35474977 , 47686052 , 808452857 , 445152660 , 3673565713 , 7218778197
n×2
396377782
n×3
594566673
n×4
792755564
n×5
990944455
n÷2
99094445.5
n÷3
66062963.666667
n÷3
49547222.75
n÷5
39637778.2
n2
39278836515809881
n3
7.7846290488387E+24
n4
1.5428269980357E+33
n5
3.0577117174556E+41
2 √n14077.957628861
3 √n583.0329539944
4 √n118.65056944179
5 √n45.64738062008
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
-198188890 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 198188891 can be divided by 4 positive divisors.
The sum of these divisors (counting 198188891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1011110100000001111101011011
3
Ternary
111210221001001022
4
Quaternary
23310001331123
5
Quinary
401214021031
6
Senary
31355513055
8
Octal
1364017533
10
Decimal
198188891
12
Duodecimal
5645878b
16
Hexadecimal
bd01f5b
20
Vigesimal
31idc4b
36
Base36
39zviz
md5
1d5d8edb74a29f237474f619a6304258
sha1
882277a20a02ef0bf6b959e37437f30eccdeba84
sha256
c42c02abf5c9eeb67a13439703f433e0055de026c8c8802bde9f1b656fa3994e
sha512
04cb58638549d1f67f5831c78a38d235493bfe64790f23c9c9d2ef95a8f807851ed73f9479ceb8491ba7af30e51b8f06daa6db151aee465e5b4b50ae8b7fd29e
ripemd-160
6680b9c3903461e0b5e16b6df05e60bde2600661
Diameter
396377782
Circumference
1245257527.9774
Area
1.2339810423962E+17
Volume
3.2608177907671E+25
Surface area
4.9359241695849E+17
Circumference
1245257527.9774
Perimeter
792755564
Area
39278836515809881
Diagonal
280281417.56388
Surface area
235673019094859286
Volume
7.7846290488387E+24
Space diagonal
343273228.70773
Perimeter
594566673
Area
1.7008235126894E+16
Altitude
171636614.35387
Surface area
1.7008235126894E+16
Volume
9.1742733157593E+23
Height
93427139.187961