19998191 is an odd 8-digits composite number following 19998190
and preceding 19998192 . In scientific notation, it is written as 1.9998191 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 19988472 positive integers (up to 19998191) that are relatively prime to 19998191.
19998191 has 4 divisors, whose sum is 20007912
The reverse of 19998191 is 19189991
Previous prime number is 6763
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
nineteen million nine hundred ninety-eight thousand one hundred ninety-one
Scientific notation
1.9998191 × 10^7
Engineering notation
1.9998191 × 10^6
Prime Factorization
6763 × 2957
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19998191
Product of the distinct prime numbers
The prime factorization of 19998191 is 6763 × 2957.
Since it has a total of 2 prime factors.
9 , 9 , 22 , 8 , 409 , 217 , 5027 , 8697 , 52359 , 10968 , 12991 , 388624 , 7713318 , 1683245 , 87006142 , 19240351 , 305926470 , 456902246 , 3069449633 , 2786818449
n×2
39996382
n×3
59994573
n×4
79992764
n×5
99990955
n÷2
9999095.5
n÷3
6666063.6666667
n÷3
4999547.75
n÷5
3999638.2
n2
399927643272481
n3
7.9978293963429E+21
n4
1.5994211985348E+29
n5
3.1985530617748E+36
2 √n
4471.9336980774
3 √n
271.43357744362
4 √n
66.872518257333
5 √n
28.853476130432
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
-19998190
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 19998191 can be divided by 4 positive divisors.
The sum of these divisors (counting 19998191) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010010111101111
3
Ternary
1101122000100202
4
Quaternary
1030102113233
5
Quinary
20104420231
6
Senary
1552344115
8
Octal
114222757
10
Decimal
19998191
12
Duodecimal
684503b
16
Hexadecimal
13125ef
20
Vigesimal
64jf9b
36
Base36
bwmpb
md5
fd9e3423b3ab647a0d0634cb698b9447
sha1
9a0b7faac01a1d999e5d91967082390a9aa9b183
sha256
e5bb967a34d948f0f89addf1a8f10fa6edd97930c7486ad970b7394b8fdfaa28
sha512
784385322a89c0248f85dd72f37229418c3962fd26fbd6f1bd718f046984a492e24a8cb97b291e0f0074d701d63d36fddd64aae28cb83d873612c9412ebeb6ac
ripemd-160
f5068d367f69fdfb8c64b1c7fc7246f9a4b8cd3c
Diameter
39996382
Circumference
125652339.86137
Area
1.2564097460723E+15
Volume
3.3501229434954E+22
Surface area
5.0256389842892E+15
Circumference
125652339.86137
Perimeter
79992764
Area
399927643272481
Diagonal
28281712.935128
Surface area
2399565859634886
Volume
7.9978293963429E+21
Space diagonal
34637882.871467
Perimeter
59994573
Area
1.731737493748E+14
Altitude
17318941.435733
Surface area
1.731737493748E+14
Volume
9.4255323348787E+20
Height
9427237.6450425