990805831 is an odd 9-digits composite number following 990805830
and preceding 990805832 . In scientific notation, it is written as 9.90805831 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 990684664 positive integers (up to 990805831) that are relatively prime to 990805831.
990805831 has 4 divisors, whose sum is 990927000
The reverse of 990805831 is 138508099
Previous prime number is 8819
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
nine hundred ninety million eight hundred five thousand eight hundred thirty-one
Scientific notation
9.90805831 × 10^8
Engineering notation
9.90805831 × 10^6
Prime Factorization
8819 × 112349
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
990805831
Product of the distinct prime numbers
The prime factorization of 990805831 is 8819 × 112349.
Since it has a total of 2 prime factors.
6 , 6 , 63 , 88 , 341 , 470 , 5793 , 2868 , 93741 , 42373 , 400862 , 304954 , 2490432 , 9327457 , 79299567 , 7535898 , 673914614 , 426973054 , 9764235179 , 5677667951
n×2
1981611662
n×3
2972417493
n×4
3963223324
n×5
4954029155
n÷2
495402915.5
n÷3
330268610.33333
n÷3
247701457.75
n÷5
198161166.2
n2
981696194743600561
n3
9.7267031402247E+26
n4
9.6372741877407E+35
n5
9.5486674601592E+44
2 √n
31477.068335536
3 √n
996.92583620105
4 √n
177.41777908523
5 √n
62.979282817332
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-990805830
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 990805831 can be divided by 4 positive divisors.
The sum of these divisors (counting 990805831) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011000011100111111101000111
3
Ternary
2120001101011002021
4
Quaternary
323003213331013
5
Quinary
4012121241311
6
Senary
242152224011
8
Octal
7303477507
10
Decimal
990805831
12
Duodecimal
23799b007
16
Hexadecimal
3b0e7f47
20
Vigesimal
f9caebb
36
Base36
gdweo7
md5
4f179f2e59b516aa30ff9d4aa7806532
sha1
abfa7475eecd8289b16994cf95610ccb746b8cfe
sha256
d4b17e4345eccc4fa3cf3081acfbc22df9d4acf7fa02c40c5b289710793b31f1
sha512
948c4676c2c866ec6430a28ed853a3a2429a9d9982ebd62da82e6e409f6ef0029ea944741d2f5b2f62b1f038cc76939fd1822a6e3b5eb2d40e03213ccdbaadde
ripemd-160
45117ab9480317c0761ea35848abb7994a8c3c6f
Diameter
1981611662
Circumference
6225416639.6071
Area
3.0840895534636E+18
Volume
4.0743118838638E+27
Surface area
1.2336358213854E+19
Circumference
6225416639.6071
Perimeter
3963223324
Area
981696194743600561
Diagonal
1401211043.8785
Surface area
5890177168461603366
Volume
9.7267031402247E+26
Space diagonal
1716126039.7275
Perimeter
2972417493
Area
4.2508692172324E+17
Altitude
858063019.86375
Surface area
4.2508692172324E+17
Volume
1.1463029581736E+26
Height
467070347.95951