1990809 is an odd 7-digits composite number following 1990808
and preceding 1990810 . In scientific notation, it is written as 1.990809 × 10^6.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 1327200 positive integers (up to 1990809) that are relatively prime to 1990809.
1990809 has 4 divisors, whose sum is 2212020
The reverse of 1990809 is 9080991
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 36
Digital Root 9
Name
one million nine hundred ninety thousand eight hundred nine
Scientific notation
1.990809 × 10^6
Engineering notation
1.990809 × 10^6
Prime Factorization
9 × 221201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1990809
Product of the distinct prime numbers
The prime factorization of 1990809 is 9 × 221201.
Since it has a total of 2 prime factors.
8 , 10 , 26 , 54 , 285 , 192 , 2572 , 481 , 91927 , 97683 , 395049 , 546999 , 1211972 , 7445539 , 42553678 , 69844290 , 437765470 , 549693147 , 1275982443 , 6669574940
n×2
3981618
n×3
5972427
n×4
7963236
n×5
9954045
n÷2
995404.5
n÷3
663603
n÷3
497702.25
n÷5
398161.8
n2
3963320474481
n3
7890214070481045129
n4
1.570790918344E+25
n5
3.1271446973576E+31
2 √n
1410.9603112774
3 √n
125.79880968406
4 √n
37.562751646776
5 √n
18.188878381344
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
-1990808
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 1990809 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990809) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110000010011001
3
Ternary
10202010212200
4
Quaternary
13212002121
5
Quinary
1002201214
6
Senary
110400413
8
Octal
7460231
10
Decimal
1990809
12
Duodecimal
800109
16
Hexadecimal
1e6099
20
Vigesimal
c8h09
36
Base36
16o49
md5
15ed651470da00eb220b8026ac562ee3
sha1
ae6177ba84b7bbe034187ed305a5d2e6eaa59dd3
sha256
8bcc6cb39a1da164fc03aca06f72033320338876508913952b0f81f60e1eec7e
sha512
2a3b2b57692e466edbc956c0e7c42427cbc865dc6b2504ab0eea359c2e58e9a59a8eed8a4493ece29fb92c6371c5712fe7e80289d688af790a70681f7a41985e
ripemd-160
b132dc37febbb82d0f9b28f5eec89cffb287ce34
Diameter
3981618
Circumference
12508621.858201
Area
12451138486452
Volume
3.3050451412099E+19
Surface area
49804553945806
Circumference
12508621.858201
Perimeter
7963236
Area
3963320474481
Diagonal
2815429.0878944
Surface area
23779922846886
Volume
7890214070481045129
Space diagonal
3448182.3361654
Perimeter
5972427
Area
1716168107119.8
Altitude
1724091.1680827
Surface area
1716168107119.8
Volume
9.2987064570844E+17
Height
938476.36263147