1997918 is an even 7-digits composite number following 1997917
and preceding 1997919 . In scientific notation, it is written as 1.997918 × 10^6.
The sum of its digits is 44. It has a total of 5 prime factors and 24 positive divisors.
There are 878592 positive integers (up to 1997918) that are relatively prime to 1997918.
1997918 has 24 divisors, whose sum is 3399408
The reverse of 1997918 is 8197991
Previous prime number is 13
Is Prime? no
Number parity even
Number length 7
Sum of Digits 44
Digital Root 8
Name
one million nine hundred ninety-seven thousand nine hundred eighteen
Scientific notation
1.997918 × 10^6
Engineering notation
1.997918 × 10^6
Prime Factorization
2 × 13 × 23 × 13 × 257
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
153686
Product of the distinct prime numbers
The prime factorization of 1997918 is 2 × 13 × 23 × 13 × 257.
Since it has a total of 5 prime factors.
2 , 10 , 92 , 38 , 644 , 639 , 3007 , 4203 , 34348 , 89916 , 586686 , 990686 , 4811548 , 1664430 , 5593156 , 79987420 , 950207065 , 161671186 , 8350674452 , 6427586758
n×2
3995836
n×3
5993754
n×4
7991672
n×5
9989590
n÷2
998959
n÷3
665972.66666667
n÷3
499479.5
n÷5
399583.6
n2
3991676334724
n3
7975041999319104632
n4
1.5933479961196E+25
n5
3.1833786417112E+31
2 √n
1413.4772725446
3 √n
125.94837054969
4 √n
37.596240138404
5 √n
18.201850036275
1 , 2 , 13 , 23 , 26 , 46 , 169 , 257 , 299 , 338 , 514 , 598 , 3341 , 3887 , 5911 , 6682 , 7774 , 11822 , 43433 , 76843 , 86866 , 153686 , 998959 , 1997918
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
-1997917
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 1997918 can be divided by 24 positive divisors.
The sum of these divisors (counting 1997918) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111100111110001011110
3
Ternary
10202111121222
4
Quaternary
13213301132
5
Quinary
1002413133
6
Senary
110453342
8
Octal
7476136
10
Decimal
1997918
12
Duodecimal
804252
16
Hexadecimal
1e7c5e
20
Vigesimal
c9efi
36
Base36
16tlq
md5
d12d696362fe331a24a3c5b374719509
sha1
ee037e3aa709da2d3592b68e5e67ca31041f8126
sha256
2eb86e026503b8e70fa872246ab438fb0602828b6675d7bc835941268082fed2
sha512
5c74c3b789e7c3437bb5c612d4c4f7e377bdd64836e48729e5e12f67adb4509791d27bd8fb93af89ccead2b6a40b86d9889dc49913fc9aa53c2b36b73e891d70
ripemd-160
68f181be2ce7195b4bfcc743b136ba8d791ed5ab
Diameter
3995836
Circumference
12553289.02255
Area
12540221048677
Volume
3.3405777809508E+19
Surface area
50160884194709
Circumference
12553289.02255
Perimeter
7991672
Area
3991676334724
Diagonal
2825482.7321093
Surface area
23950058008344
Volume
7975041999319104632
Space diagonal
3460495.4853564
Perimeter
5993754
Area
1728446554778.1
Altitude
1730247.7426782
Surface area
1728446554778.1
Volume
9.3986771299434E+17
Height
941827.57736978