1998387 is an odd 7-digits composite number following 1998386
and preceding 1998388 . In scientific notation, it is written as 1.998387 × 10^6.
The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors.
There are 1332252 positive integers (up to 1998387) that are relatively prime to 1998387.
1998387 has 6 divisors, whose sum is 2886572
The reverse of 1998387 is 7838991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 45
Digital Root 9
Name
one million nine hundred ninety-eight thousand three hundred eighty-seven
Scientific notation
1.998387 × 10^6
Engineering notation
1.998387 × 10^6
Prime Factorization
3 × 3 × 222043
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
666129
Product of the distinct prime numbers
The prime factorization of 1998387 is 3 × 3 × 222043.
Since it has a total of 3 prime factors.
3 , 3 , 48 , 29 , 504 , 758 , 8574 , 4428 , 14295 , 50697 , 470069 , 771375 , 6081401 , 227769 , 13521799 , 21489159 , 256020853 , 254727329 , 679596703 , 6977343080
n×2
3996774
n×3
5995161
n×4
7993548
n×5
9991935
n÷2
999193.5
n÷3
666129
n÷3
499596.75
n÷5
399677.4
n2
3993550601769
n3
7980659606417346603
n4
1.594844640889E+25
n5
3.1871167973722E+31
2 √n
1413.6431657246
3 √n
125.95822500223
4 √n
37.598446320621
5 √n
18.202704512405
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998387 can be divided by 6 positive divisors.
The sum of these divisors (counting 1998387) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111100111111000110011
3
Ternary
10202112021100
4
Quaternary
13213320303
5
Quinary
1002422022
6
Senary
110455443
8
Octal
7477063
10
Decimal
1998387
12
Duodecimal
804583
16
Hexadecimal
1e7e33
20
Vigesimal
c9fj7
36
Base36
16tyr
md5
909a385ad233a49d5ce3857c46a7dcb5
sha1
5a3da68489dffcac3e56ffa66cbde2bfb99f60f3
sha256
b43f5adb654cf7925ebb42f442259ed03cb8ef0e48f1335da06fb119f04fafe1
sha512
cf98772d058e1b8d40d2321d41779a187ed9cf1952780c8d4423c0a984728c87d89da2c7f44b75057b1b1b70ef7b0d5852492ce3e848c98710fce97727d5b228
ripemd-160
4ceb751b57b391315f9d688225ad02c8c9024142
Diameter
3996774
Circumference
12556235.836459
Area
12546109232257
Volume
3.3429308787095E+19
Surface area
50184436929026
Circumference
12556235.836459
Perimeter
7993548
Area
3993550601769
Diagonal
2826145.9982701
Surface area
23961303610614
Volume
7980659606417346603
Space diagonal
3461307.8171851
Perimeter
5995161
Area
1729258136215.3
Altitude
1730653.9085926
Surface area
1729258136215.3
Volume
9.4052975433988E+17
Height
942048.66609003