1990805 is an odd 7-digits composite number following 1990804
and preceding 1990806 . In scientific notation, it is written as 1.990805 × 10^6.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 1590120 positive integers (up to 1990805) that are relatively prime to 1990805.
1990805 has 6 divisors, whose sum is 2392758
The reverse of 1990805 is 5080991
Previous prime number is 631
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million nine hundred ninety thousand eight hundred five
Scientific notation
1.990805 × 10^6
Engineering notation
1.990805 × 10^6
Prime Factorization
5 × 631 × 631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
3155
Product of the distinct prime numbers
The prime factorization of 1990805 is 5 × 631 × 631.
Since it has a total of 3 prime factors.
4 , 6 , 43 , 67 , 776 , 502 , 7119 , 3243 , 93415 , 28930 , 797459 , 821162 , 8338701 , 2346382 , 64203739 , 56462773 , 800268119 , 404877432 , 2652788715 , 4169383268
n×2
3981610
n×3
5972415
n×4
7963220
n×5
9954025
n÷2
995402.5
n÷3
663601.66666667
n÷3
497701.25
n÷5
398161
n2
3963304548025
n3
7890166510730910125
n4
1.5707782940396E+25
n5
3.1271132816654E+31
2 √n
1410.9588938024
3 √n
125.79872543094
4 √n
37.562732778678
5 √n
18.188871072198
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990805 can be divided by 6 positive divisors.
The sum of these divisors (counting 1990805) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111100110000010010101
3
Ternary
10202010212112
4
Quaternary
13212002111
5
Quinary
1002201210
6
Senary
110400405
8
Octal
7460225
10
Decimal
1990805
12
Duodecimal
800105
16
Hexadecimal
1e6095
20
Vigesimal
c8h05
36
Base36
16o45
md5
f80f3eb362530108b228e17e9b67794b
sha1
0c30148e3c9f65211c9d8aa0f2a01fb6682faaab
sha256
a578b6f3490eeebb278939bd5b0220e4ba674b75d85194a13a88d399a9bf9e35
sha512
1fc657ce267157d5c026d7ed52fe3f173b75a392caa4ee1c873dc6c53ace51c21f33bdd670e70f7b88de863e450a61bc1ce86325d98b6080432bbe97fcff6fae
ripemd-160
85c6f22a499c2391a9bdb3a31260d71dec98f555
Diameter
3981610
Circumference
12508596.72546
Area
12451088452014
Volume
3.3050252194283E+19
Surface area
49804353808057
Circumference
12508596.72546
Perimeter
7963220
Area
3963304548025
Diagonal
2815423.4310402
Surface area
23779827288150
Volume
7890166510730910125
Space diagonal
3448175.4079622
Perimeter
5972415
Area
1716161210762
Altitude
1724087.7039811
Surface area
1716161210762
Volume
9.2986504073814E+17
Height
938474.47701339