1997488938 is an even 10-digits composite number following 1997488937
and preceding 1997488939 . In scientific notation, it is written as 1.997488938 × 10^9.
The sum of its digits is 66. It has a total of 4 prime factors and 16 positive divisors.
There are 665749680 positive integers (up to 1997488938) that are relatively prime to 1997488938.
1997488938 has 16 divisors, whose sum is 3995457696
The reverse of 1997488938 is 8398847991
Previous prime number is 28163
Is Prime? no
Number parity even
Number length 10
Sum of Digits 66
Digital Root 3
Name
one billion nine hundred ninety-seven million four hundred eighty-eight thousand nine hundred thirty-eight
Scientific notation
1.997488938 × 10^9
Engineering notation
1.997488938 × 10^9
Prime Factorization
2 × 3 × 28163 × 11821
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1997488938
Product of the distinct prime numbers
The prime factorization of 1997488938 is 2 × 3 × 28163 × 11821.
Since it has a total of 4 prime factors.
7 , 5 , 47 , 3 , 506 , 568 , 7736 , 1660 , 65930 , 22983 , 826 , 316038 , 3358169 , 5539380 , 89006100 , 42427733 , 83842518 , 595915852 , 9866862509 , 6563008353
n×2
3994977876
n×3
5992466814
n×4
7989955752
n×5
9987444690
n÷2
998744469
n÷3
665829646
n÷3
499372234.5
n÷5
399497787.6
n2
3989962057432367844
n3
7.9699050727609E+27
n4
1.591979721975E+37
n5
3.1799618841654E+46
2 √n
44693.276205711
3 √n
1259.3935390859
4 √n
211.4078432928
5 √n
72.459757554061
1 , 2 , 3 , 6 , 11821 , 23642 , 28163 , 35463 , 56326 , 70926 , 84489 , 168978 , 332914823 , 665829646 , 998744469 , 1997488938
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1997488937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1997488938 can be divided by 16 positive divisors.
The sum of these divisors (counting 1997488938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000011110100001100101010
3
Ternary
12011012121221200210
4
Quaternary
1313003310030222
5
Quinary
13042324121223
6
Senary
530113041550
8
Octal
16703641452
10
Decimal
1997488938
12
Duodecimal
478b562b6
16
Hexadecimal
770f432a
20
Vigesimal
1b44626i
36
Base36
x194bu
md5
763bda1a7151a40130af19277ae77825
sha1
fd642b7fb7683591dcd7c0709f10644d1f3f939c
sha256
97fe532078c5a30543bff66a574044e83ced397ac6c91dbd5af745561ab96926
sha512
c6075b790826f687f44c64b01b34f003e65f9e03f1584a548cd29017ec92575880361cd0f0a9c7d680eab87b88c912bc7d791e637ee1106a98e0c9c3b44c5b4e
ripemd-160
c0e439a3864be3c564b3af74424074fbcf86fb60
Diameter
3994977876
Circumference
12550593146.495
Area
1.2534835487732E+19
Volume
3.3384260301858E+28
Surface area
5.0139341950926E+19
Circumference
12550593146.495
Perimeter
7989955752
Area
3989962057432367844
Diagonal
2824875946.8098
Surface area
2.3939772344594E+19
Volume
7.9699050727609E+27
Space diagonal
3459752328.1728
Perimeter
5992466814
Area
1.7277042509362E+18
Altitude
1729876164.0864
Surface area
1.7277042509362E+18
Volume
9.3926232039371E+26
Height
941625315.60328