1998988 is an even 7-digits composite number following 1998987
and preceding 1998989 . In scientific notation, it is written as 1.998988 × 10^6.
The sum of its digits is 52. It has a total of 3 prime factors and 6 positive divisors.
There are 999492 positive integers (up to 1998988) that are relatively prime to 1998988.
1998988 has 6 divisors, whose sum is 3498236
The reverse of 1998988 is 8898991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 52
Digital Root 7
Name
one million nine hundred ninety-eight thousand nine hundred eighty-eight
Scientific notation
1.998988 × 10^6
Engineering notation
1.998988 × 10^6
Prime Factorization
2 × 2 × 499747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
999494
Product of the distinct prime numbers
The prime factorization of 1998988 is 2 × 2 × 499747.
Since it has a total of 3 prime factors.
5 , 10 , 26 , 58 , 122 , 652 , 2667 , 1579 , 18990 , 5212 , 674365 , 29928 , 8930700 , 5805041 , 52181591 , 53127395 , 559307701 , 337935539 , 7602180775 , 7359617112
n×2
3997976
n×3
5996964
n×4
7995952
n×5
9994940
n÷2
999494
n÷3
666329.33333333
n÷3
499747
n÷5
399797.6
n2
3995953024144
n3
7987862143827566272
n4
1.5967640571166E+25
n5
3.1919121890073E+31
2 √n
1413.8557210692
3 √n
125.97085073583
4 √n
37.601272865013
5 √n
18.20379924627
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
-1998987
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 1998988 can be divided by 6 positive divisors.
The sum of these divisors (counting 1998988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111101000000010001100
3
Ternary
10202120002121
4
Quaternary
13220002030
5
Quinary
1002431423
6
Senary
110502324
8
Octal
7500214
10
Decimal
1998988
12
Duodecimal
8049a4
16
Hexadecimal
1e808c
20
Vigesimal
c9h98
36
Base36
16ufg
md5
2a3566dac918300206d31b73a0787b82
sha1
9e2c8a743105dec727a048b81e776438a9624419
sha256
fbea603204f1f0b9b7afdb9ac6a272e144365666f93a98dd69bff4ff7650c072
sha512
ce10d9619b8d74ad30ac98040f6fc5d297b2ffc628d3a09bdee6a803c921531c2b6d73362a3e1d197c25f5eec1bfcc3b45181712b2c8db36c676bcb9a63c9d64
ripemd-160
b66dca2421dc64c8ea388c71aabf32bd305ac30b
Diameter
3997976
Circumference
12560012.030828
Area
12553656664741
Volume
3.3459478705249E+19
Surface area
50214626658963
Circumference
12560012.030828
Perimeter
7995952
Area
3995953024144
Diagonal
2826995.9406211
Surface area
23975718144864
Volume
7987862143827566272
Space diagonal
3462348.7797205
Perimeter
5996964
Area
1730298415619
Altitude
1731174.3898602
Surface area
1730298415619
Volume
9.4137858151396E+17
Height
942331.98020702