1990385 is an odd 7-digits composite number following 1990384
and preceding 1990386 . In scientific notation, it is written as 1.990385 × 10^6.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 1592304 positive integers (up to 1990385) that are relatively prime to 1990385.
1990385 has 4 divisors, whose sum is 2388468
The reverse of 1990385 is 5830991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 35
Digital Root 8
Name
one million nine hundred ninety thousand three hundred eighty-five
Scientific notation
1.990385 × 10^6
Engineering notation
1.990385 × 10^6
Prime Factorization
5 × 398077
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1990385
Product of the distinct prime numbers
The prime factorization of 1990385 is 5 × 398077.
Since it has a total of 2 prime factors.
9 , 1 , 24 , 6 , 482 , 225 , 8780 , 8083 , 18230 , 38211 , 153702 , 232934 , 1836436 , 5002705 , 57978331 , 79844233 , 541981397 , 882464242 , 9080516285 , 7267303805
n×2
3980770
n×3
5971155
n×4
7961540
n×5
9951925
n÷2
995192.5
n÷3
663461.66666667
n÷3
497596.25
n÷5
398077
n2
3961632448225
n3
7885173800460316625
n4
1.5694531654829E+25
n5
3.1238160387797E+31
2 √n
1410.8100509991
3 √n
125.78987822581
4 √n
37.560751470106
5 √n
18.188103546438
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
-1990384
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 1990385 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990385) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100101111011110001
3
Ternary
10202010021222
4
Quaternary
13211323301
5
Quinary
1002143020
6
Senary
110354425
8
Octal
7457361
10
Decimal
1990385
12
Duodecimal
7bba15
16
Hexadecimal
1e5ef1
20
Vigesimal
c8fj5
36
Base36
16nsh
md5
e8a23476c3aa2c1badd9a647306ae0a9
sha1
a295830dd92f06a0cd53cb527c37ee3dac93fe29
sha256
30b9b9d5ef1af1f194c8f3bef2fd77d3be5ca3e0dcc3659ce9bad13450713b32
sha512
5713d8e5d6b4f20cc007952fa9f5f8b6294d116f5d9331929a51d7f335b7b8c508dcd51f7fcc509bd49815284ae170c58dde7144b3c7c77938aef5471e6b8c7f
ripemd-160
deb8d5a73ee4ecc2c1d6bc006d02f17e8bb734d0
Diameter
3980770
Circumference
12505957.787631
Area
12445835395567
Volume
3.3029338778406E+19
Surface area
49783341582266
Circumference
12505957.787631
Perimeter
7961540
Area
3961632448225
Diagonal
2814829.461344
Surface area
23769794689350
Volume
7885173800460316625
Space diagonal
3447447.946623
Perimeter
5971155
Area
1715437170309.8
Altitude
1723723.9733115
Surface area
1715437170309.8
Volume
9.2927664419E+17
Height
938276.48711466