1990405 is an odd 7-digits composite number following 1990404
and preceding 1990406 . In scientific notation, it is written as 1.990405 × 10^6.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 1571856 positive integers (up to 1990405) that are relatively prime to 1990405.
1990405 has 8 divisors, whose sum is 2419200
The reverse of 1990405 is 5040991
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million nine hundred ninety thousand four hundred five
Scientific notation
1.990405 × 10^6
Engineering notation
1.990405 × 10^6
Prime Factorization
5 × 79 × 5039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990405
Product of the distinct prime numbers
The prime factorization of 1990405 is 5 × 79 × 5039.
Since it has a total of 3 prime factors.
1 , 10 , 12 , 46 , 196 , 732 , 2140 , 4797 , 84721 , 44631 , 822515 , 288167 , 476917 , 8393189 , 49556971 , 87047912 , 832229260 , 690371568 , 7070515737 , 7736532285
n×2
3980810
n×3
5971215
n×4
7961620
n×5
9952025
n÷2
995202.5
n÷3
663468.33333333
n÷3
497601.25
n÷5
398081
n2
3961712064025
n3
7885411500795680125
n4
1.5695162478241E+25
n5
3.1239729872504E+31
2 √n
1410.8171391077
3 √n
125.79029954951
4 √n
37.560845825243
5 √n
18.188140098222
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990405 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990405) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100101111100000101
3
Ternary
10202010022201
4
Quaternary
13211330011
5
Quinary
1002143110
6
Senary
110354501
8
Octal
7457405
10
Decimal
1990405
12
Duodecimal
7bba31
16
Hexadecimal
1e5f05
20
Vigesimal
c8g05
36
Base36
16nt1
md5
07b16338f7e43d50aafb604baba201ba
sha1
77ba7cafa97cb5a2d4b884d71799fee45b86b145
sha256
3e07c86e81ac7b77e187e96534b476042513ee2ced1425ccaf244af2ebcf802b
sha512
106b73163b1a0be0ef9ef348708b9422421af9b9990445ed9e48376b04d2f85af23a6ede9236c63dfb1279e34508aeacccc37062b4bdbb53b4a3dbca55f05225
ripemd-160
9b6533b474e69c309dbb3bf8130113648d766cab
Diameter
3980810
Circumference
12506083.451337
Area
12446085515979
Volume
3.3030334455243E+19
Surface area
49784342063916
Circumference
12506083.451337
Perimeter
7961620
Area
3961712064025
Diagonal
2814857.7456152
Surface area
23770272384150
Volume
7885411500795680125
Space diagonal
3447482.5876391
Perimeter
5971215
Area
1715471644962.5
Altitude
1723741.2938196
Surface area
1715471644962.5
Volume
9.2930465744317E+17
Height
938285.91520507