990809813 is an odd 9-digits composite number following 990809812
and preceding 990809814 . In scientific notation, it is written as 9.90809813 × 10^8.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 826575360 positive integers (up to 990809813) that are relatively prime to 990809813.
990809813 has 16 divisors, whose sum is 1162740096
The reverse of 990809813 is 318908099
Previous prime number is 443
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
nine hundred ninety million eight hundred nine thousand eight hundred thirteen
Scientific notation
9.90809813 × 10^8
Engineering notation
9.90809813 × 10^6
Prime Factorization
7 × 41 × 443 × 7793
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
990809813
Product of the distinct prime numbers
The prime factorization of 990809813 is 7 × 41 × 443 × 7793.
Since it has a total of 4 prime factors.
7 , 1 , 87 , 77 , 414 , 300 , 3263 , 1878 , 36074 , 52361 , 16803 , 605997 , 6973009 , 6557441 , 11048263 , 86727744 , 718119268 , 337456492 , 4355327965 , 7587835108
n×2
1981619626
n×3
2972429439
n×4
3963239252
n×5
4954049065
n÷2
495404906.5
n÷3
330269937.66667
n÷3
247702453.25
n÷5
198161962.6
n2
981704085537094969
n3
9.7268204141235E+26
n4
9.6374291156022E+35
n5
9.5488593398306E+44
2 √n
31477.131587869
3 √n
996.92717173126
4 √n
177.4179573433
5 √n
62.97933343938
1 , 7 , 41 , 287 , 443 , 3101 , 7793 , 18163 , 54551 , 127141 , 319513 , 2236591 , 3452299 , 24166093 , 141544259 , 990809813
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
-990809812
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 990809813 can be divided by 16 positive divisors.
The sum of these divisors (counting 990809813) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111011000011101000111011010101
3
Ternary
2120001101100112202
4
Quaternary
323003220323111
5
Quinary
4012121403223
6
Senary
242152254245
8
Octal
7303507325
10
Decimal
990809813
12
Duodecimal
2379a1385
16
Hexadecimal
3b0e8ed5
20
Vigesimal
f9cb4ad
36
Base36
gdwhqt
md5
147a77d88229de66330ba6544566be7e
sha1
02d4feddf1494ba6b7a1eb162be63e72279c6e95
sha256
f2c638eb8f00661bccd32862877e157b6508ec9ad8757ba74afd84dee9487ad3
sha512
fa1a18f808bb05f2ad4275ee2f8074d04d05b42e11f725e93fe257d3321d8e95e9f4c81113213cffd45f5b3ac597c781d5fbe231b4ebaab0c67e2ccdc2cce2e7
ripemd-160
700cd046eecaf81995e45e07e2a34f95fd6617aa
Diameter
1981619626
Circumference
6225441659.251
Area
3.0841143431224E+18
Volume
4.0743610074397E+27
Surface area
1.233645737249E+19
Circumference
6225441659.251
Perimeter
3963239252
Area
981704085537094969
Diagonal
1401216675.277
Surface area
5890224513222569814
Volume
9.7268204141235E+26
Space diagonal
1716132936.7538
Perimeter
2972429439
Area
4.2509033853705E+17
Altitude
858066468.37691
Surface area
4.2509033853705E+17
Volume
1.1463167790351E+26
Height
467072225.09232