1997145 is an odd 7-digits composite number following 1997144
and preceding 1997146 . In scientific notation, it is written as 1.997145 × 10^6.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 1065120 positive integers (up to 1997145) that are relatively prime to 1997145.
1997145 has 8 divisors, whose sum is 2840448
The reverse of 1997145 is 5417991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 36
Digital Root 9
Name
one million nine hundred ninety-seven thousand one hundred forty-five
Scientific notation
1.997145 × 10^6
Engineering notation
1.997145 × 10^6
Prime Factorization
15 × 3 × 44381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1997145
Product of the distinct prime numbers
The prime factorization of 1997145 is 15 × 3 × 44381.
Since it has a total of 3 prime factors.
6 , 8 , 79 , 99 , 239 , 154 , 1639 , 1777 , 25703 , 39982 , 590667 , 101580 , 7517437 , 380835 , 64940958 , 23600917 , 889249961 , 377780728 , 9761910783 , 2386301041
n×2
3994290
n×3
5991435
n×4
7988580
n×5
9985725
n÷2
998572.5
n÷3
665715
n÷3
499286.25
n÷5
399429
n2
3988588151025
n3
7965788882878823625
n4
1.5908835438497E+25
n5
3.1772251151817E+31
2 √n
1413.2038069578
3 √n
125.93212519675
4 √n
37.592603088344
5 √n
18.200441349024
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
-1997144
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 1997145 can be divided by 8 positive divisors.
The sum of these divisors (counting 1997145) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100111100101011001
3
Ternary
10202110120100
4
Quaternary
13213211121
5
Quinary
1002402040
6
Senary
110450013
8
Octal
7474531
10
Decimal
1997145
12
Duodecimal
803909
16
Hexadecimal
1e7959
20
Vigesimal
c9ch5
36
Base36
16t09
md5
f4b27bfb387ed6e3debc0571e7517cd0
sha1
70457ce2dfe449b81dd49761abd355972b0d3faa
sha256
ff0a80667399e82a0abf89f480ed66dacb9fb9c24ea887a3274a6e06e1fed4a2
sha512
00a6fedb38fa15c8d0a3e97c872820f5a59f5c37f49d97a0b8e32fa4e1c141dad56c486526db1335ce5eccf68ef3f57d94e18950c947a8079c5afd3a8ebf5f15
ripemd-160
c639558ff148aeaa5e57c054c6eadd4c0ff4e001
Diameter
3994290
Circumference
12548432.120307
Area
12530519233455
Volume
3.3367018445999E+19
Surface area
50122076933822
Circumference
12548432.120307
Perimeter
7988580
Area
3988588151025
Diagonal
2824389.5450256
Surface area
23931528906150
Volume
7965788882878823625
Space diagonal
3459156.6100821
Perimeter
5991435
Area
1727109332010.6
Altitude
1729578.3050411
Surface area
1727109332010.6
Volume
9.38777222764E+17
Height
941463.18167521