991009 is an odd 6-digits prime number following 991008
and preceding 991010 . In scientific notation, it is written as 9.91009 × 10^5.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 991008 positive integers (up to 991009) that are relatively prime to 991009.
991009 has 2 divisors, whose sum is 991010
The reverse of 991009 is 900199
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
nine hundred ninety-one thousand nine
Scientific notation
9.91009 × 10^5
Engineering notation
9.91009 × 10^3
Prime Factorization
991009
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
991009
Product of the distinct prime numbers
The prime factorization of 991009 is 991009.
Since it has a total of 1 prime factors.
1 , 6 , 20 , 59 , 39 , 31 , 9551 , 3387 , 43230 , 80437 , 236111 , 832648 , 3818956 , 362093 , 11022924 , 37100893 , 803670328 , 337800021 , 4908447984 , 5001711924
n×2
1982018
n×3
2973027
n×4
3964036
n×5
4955045
n÷2
495504.5
n÷3
330336.33333333
n÷3
247752.25
n÷5
198201.8
n2
982098838081
n3
973268787427813729
n4
9.6451812776005E+23
n5
9.5584614527336E+29
2 √n
995.49434955704
3 √n
99.699397285516
4 √n
31.551455585393
5 √n
15.820329323017
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
991010
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
495505
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
995.49485181994
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999979818569
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 991009 can be divided by 2 positive divisors.
The sum of these divisors (counting 991009) is 991010, the average is 495505.
Base
System
Value
2
Binary
11110001111100100001
3
Ternary
1212100102001
4
Quaternary
3301330201
5
Quinary
223203014
6
Senary
33124001
8
Octal
3617441
10
Decimal
991009
12
Duodecimal
3b9601
16
Hexadecimal
f1f21
20
Vigesimal
63ha9
36
Base36
l8o1
md5
a8d50bca03ee262dd1a411fcf885355c
sha1
07a1b97e36f6727a12b3b145bfd5b15bdf4a7857
sha256
6b95f70f9c9d39ea7cc0850a9785b91bbdbf97f915b7c37057178221c5624208
sha512
b70ee2adebfa218143b03ff3c6b478dccde422b6905c9b519014c74489d69e6e9d7127fa117a55891910ebd7d0af9a41c3352331ccb90e8bdf930e99a59210ca
ripemd-160
8794309998eec2cda7d06897ffd90263b03b3863
Diameter
1982018
Circumference
6226693.1880827
Area
3085354494814.3
Volume
4.076818763402E+18
Surface area
12341417979257
Circumference
6226693.1880827
Perimeter
3964036
Area
982098838081
Diagonal
1401498.3682338
Surface area
5892593028486
Volume
973268787427813729
Space diagonal
1716477.938758
Perimeter
2973027
Area
425261271402.66
Altitude
858238.96937901
Surface area
425261271402.66
Volume
1.1470082658457E+17
Height
467166.1227446