1998721844 is an even 10-digits composite number following 1998721843
and preceding 1998721845 . In scientific notation, it is written as 1.998721844 × 10^9.
The sum of its digits is 53. It has a total of 5 prime factors and 24 positive divisors.
There are 856378080 positive integers (up to 1998721844) that are relatively prime to 1998721844.
1998721844 has 24 divisors, whose sum is 3998456448
The reverse of 1998721844 is 4481278991
Previous prime number is 5821
Is Prime? no Number parity even Number length 10 Sum of Digits 53 Digital Root 8
Name
one billion nine hundred ninety-eight million seven hundred twenty-one thousand eight hundred forty-four
Scientific notation
1.998721844 × 10^9
Engineering notation
1.998721844 × 10^9
Prime Factorization
2 × 2 × 7 × 5821 × 12263
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
999360922 Product of the distinct prime numbers
The prime factorization of 1998721844 is 2 × 2 × 7 × 5821 × 12263.
Since it has a total of 5 prime factors.
1 , 2 , 15 , 73 , 811 , 878 , 6365 , 8646 , 44459 , 63782 , 170096 , 862324 , 4372190 , 7479120 , 41178908 , 17610836 , 119555819 , 843043760 , 9020260945 , 1612358344
n×2
3997443688
n×3
5996165532
n×4
7994887376
n×5
9993609220
n÷2
999360922
n÷3
666240614.66667
n÷3
499680461
n÷5
399744368.8
n2
3994889009682760336
n3
7.9846719280085E+27
n4
1.5959138199684E+37
n5
3.1897878131123E+46
2 √n44707.067047616
3 √n1259.6525967577
4 √n211.44045745225
5 √n72.468700183983
1 , 2 , 4 , 7 , 14 , 28 , 5821 , 11642 , 12263 , 23284 , 24526 , 40747 , 49052 , 81494 , 85841 , 162988 , 171682 , 343364 , 71382923 , 142765846 , 285531692 , 499680461 , 999360922 , 1998721844
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998721843 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998721844 can be divided by 24 positive divisors.
The sum of these divisors (counting 1998721844) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110111001000100001001100110100
3
Ternary
12011021221120220222
4
Quaternary
1313020201030310
5
Quinary
13043133044334
6
Senary
530155313512
8
Octal
16710411464
10
Decimal
1998721844
12
Duodecimal
47944b898
16
Hexadecimal
77221334
20
Vigesimal
1b4c04c4
36
Base36
x1zjn8
md5
b43248d824ab34f2f48e9ca043bd57aa
sha1
4147b13a7efc8a01b724ebd4de0179c4aa967a93
sha256
48f4bdbed9f95a9da9ff39636f864604b8db44dfadb179e038b748ae9da87a43
sha512
2eddcceccc667deaec41eca1e2a9c4d4c15f1c357e1bd826eb79a67fd4f1e60b36fd5bc5fb6d6187fb7cd3fa4e8eb775c0b642de7b50632447ec439f8d9d2a04
ripemd-160
0532776a41f6173f24aebc9f5343e0f0c2af813d
Diameter
3997443688
Circumference
12558339723.36
Area
1.2550313964726E+19
Volume
3.3446115560475E+28
Surface area
5.0201255858904E+19
Circumference
12558339723.36
Perimeter
7994887376
Area
3994889009682760336
Diagonal
2826619539.1962
Surface area
2.3969334058097E+19
Volume
7.9846719280085E+27
Space diagonal
3461887784.0058
Perimeter
5996165532
Area
1.7298376838423E+18
Altitude
1730943892.0029
Surface area
1.7298376838423E+18
Volume
9.4100261097411E+26
Height
942206513.06539