1998731 is an odd 7-digits composite number following 1998730
and preceding 1998732 . In scientific notation, it is written as 1.998731 × 10^6.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 1713192 positive integers (up to 1998731) that are relatively prime to 1998731.
1998731 has 4 divisors, whose sum is 2284272
The reverse of 1998731 is 1378991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety-eight thousand seven hundred thirty-one
Scientific notation
1.998731 × 10^6
Engineering notation
1.998731 × 10^6
Prime Factorization
7 × 285533
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1998731
Product of the distinct prime numbers
The prime factorization of 1998731 is 7 × 285533.
Since it has a total of 2 prime factors.
7 , 7 , 1 , 18 , 808 , 869 , 9872 , 721 , 51369 , 85044 , 606502 , 313652 , 5954152 , 9887017 , 58343068 , 56650393 , 901968216 , 899873198 , 7699015296 , 5241839899
n×2
3997462
n×3
5996193
n×4
7994924
n×5
9993655
n÷2
999365.5
n÷3
666243.66666667
n÷3
499682.75
n÷5
399746.2
n2
3994925610361
n3
7984781660122451891
n4
1.5959430632318E+25
n5
3.1898608747164E+31
2 √n
1413.7648319293
3 √n
125.96545202138
4 √n
37.600064254324
5 √n
18.203331147711
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
-1998730
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 1998731 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998731) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100111111110001011
3
Ternary
10202112202002
4
Quaternary
13213332023
5
Quinary
1002424411
6
Senary
110501215
8
Octal
7477613
10
Decimal
1998731
12
Duodecimal
80480b
16
Hexadecimal
1e7f8b
20
Vigesimal
c9ggb
36
Base36
16u8b
md5
bad10e06e6c518edd313602db48ac2a3
sha1
6218f014990f1909ab6abe2bf4accd5bcbd0cf6b
sha256
de6b1e16041cb3a605c3a57878e01625d8596fe5cf20f0538adfe7d374bacd7e
sha512
9768b804f58ed9c911c88549e4ccb431c11785cda7e2a64198a912bad795a9bd2b21d281aedc7cbf59bec43f9af1abc132157d3c143984214e1202263039c98a
ripemd-160
3f6c86579c4f2a650c5d0d44036f07bf4ca122d8
Diameter
3997462
Circumference
12558397.252204
Area
12550428949148
Volume
3.3446575205279E+19
Surface area
50201715796591
Circumference
12558397.252204
Perimeter
7994924
Area
3994925610361
Diagonal
2826632.4877355
Surface area
23969553662166
Volume
7984781660122451891
Space diagonal
3461903.6426629
Perimeter
5996193
Area
1729853532400.8
Altitude
1730951.8213315
Surface area
1729853532400.8
Volume
9.4101554302776E+17
Height
942210.82924518